MISSING: Melissa Casias

19:09Brit Prawat:The girl could have tripped over a pebble while just like out on a walk. Yeah. Like I could talk about this for hours and we're going to get into it more later, I promise. But they decide not to look. And in the meantime, that night, when the Mondragons get to talk to Mark, they're expecting a husband out of his mind with worry. Yeah. Instead, what they get is anger. Mark tells them that he and Melissa had gotten into an argument that morning before they left for work. He had caught her vaping. They bickered throughout the entire drive to the lab. And when she dropped him off, she told him to find his own effing ride home.

19:50Ashley Flowers:Wait, Mark didn't mention any of that to police.

19:53Brit Prawat:Oh, no. And he doesn't for a while. But if the Mondragon's account is accurate, it means that Mark knew from the jump that Melissa wasn't planning to drive him home. Not because of anything that Sierra later relayed in the day. And on top of that, they say that Mark starts badmouthing Melissa almost immediately, telling them that Melissa had been on a roll with F-ups lately, that she had destroyed their finances, accumulating debt, getting backed up on tax payments.

20:24Ashley Flowers:And are police searching the place at all, or are they just taking all these statements that first night?

20:29Brit Prawat:No, they actually search. Mark lets police, including lead investigator, Agent Ezekiel Esquivel-Mata. He goes through the house and, like, they take photographs. And while there was nothing that stood out to the first responding officer who did that, like, once over of the place, you know, when you come at it with an investigator's eye and you, like, zoom in, there is more that you pick up on. Like, they hone in on a pair of Mark's hunting boots sitting on his and Melissa's bedroom floor next to a fish tank. Some of the mud on them looks fresh. But Mark insists that he hadn't worn those boots in ages.

21:05Brit Prawat:And he points to what he says is proof, a spider web inside. Nobody put their foot in there recently. Except when agents look, they don't see any spider webs. For a man who says that he's been at work and inside all day, fresh mud on hunting boots is a hard thing to explain away. Then, when agents review the scene photos the next morning, This is now Friday, June 27th. They get more suspicious. Right next to one of those boots is a dried drop of something. Something that looks an awful lot like it could be blood. So when the Mondragons and Melissa's friends are out canvassing neighborhoods and hanging out missing person flyers, Mark goes in to talk to police.

21:54Brit Prawat:Agents put the photos in front of him. They ask him about the stain. But Mark says he's sure that's not blood. But he's getting like more and more agitated as the questioning continues until finally he asks if he should get a lawyer. And he just ends it right there. But they detain him and seize his phone, which is worth noting because despite what he apparently later tells his daughters, he did not hand it over voluntarily, according to what police told us. They have to apply for a search warrant to get its contents by doing a forensic download, which that's going to take some time. But one thing they're able to do really quickly while he's at the station that day is verify his alibi.

22:37Brit Prawat:The lab confirms that he was at work that day and even his drive home is accounted for because of that co-worker who gave him a ride. He confirms that trip. However, that doesn't close anything out. No, it doesn't seem like he could have physically done anything to Melissa, but that doesn't prove that he wasn't involved or that he doesn't know more than he's letting on. So police get a search warrant for the Cassius home. They take Melissa's phones, they take Mark's boots, and they run a presumptive test on that stain by the fish tank, which comes back positive for blood. So they send out swabs of that for further testing.

23:17Brit Prawat:Meanwhile, the Mondragons decide to organize a search party, which kicks off at Melissa's parents' house on Saturday, June 28th. Now, Mark says he didn't even know that that was happening. I guess he stumbled across news of it on Facebook. But once he does, he shows up. Not to help them look for his missing wife, though. According to the Mondragons, he comes to tell them that he's figured it all out, and he is sure that Melissa left on her own. He says he'd spent some time going through her paperwork and discovered that their finances were in far worse shape than he had actually realized.

23:54Ashley Flowers:Is he basically showing up and saying, don't look for her again?

23:59Brit Prawat:I don't think those words, don't look for her, came out of his mouth. But he is there to tell them why he thinks she left on her own.

24:06Ashley Flowers:He already told them about the finances, though. Like, he mentioned it that very first night.

24:11Brit Prawat:Right, but now he wants them to understand, like, the severity of it, which he says he is just now finally, like, getting a good grasp of. Though, like, the signs seem to have been there. So starting a couple of years back, that's when Mark says he got this humiliating wake-up call. He had taken some co-workers out to lunch, tried to pay, and his cards were declined. He looked into it and learned that his checking and credit accounts were overdrawn and that his savings account had been drained. When he confronted Melissa about it, she told him that she'd use the savings to pay their taxes, an explanation that he accepted.

24:49Brit Prawat:But it rattled him enough that he decided to separate their finances. He told us that he took over the major bills like vehicle payments, health insurance, and he left Melissa to handle the smaller monthly expenses. But by June of 2025, there were at least two huge signs that things had only gotten worse. One, their wages were being garnished. And two, their security clearances at the lab had been suspended because of their deteriorating financial situation. Melissa even had to move workspaces because she no longer had the clearance required for the office where she'd been working.

25:30Ashley Flowers:Then how can he claim that he didn't know how bad things were?

25:35Brit Prawat:I mean, he's more saying that he didn't realize how catastrophic it had gotten. Which is kind of hard for the Montragons to believe because the couple had been hit with more than a dozen lawsuits or claims over the years, mostly tied to unpaid debts, business disputes and like family matters. But he maintains that he was in the dark on a lot of this stuff, that Melissa was like intercepting legal paperwork and hiding letters from attorneys or whatever.

26:01Ashley Flowers:But that doesn't make any sense. Like, why would she want to do that?

26:04Brit Prawat:I have no idea. But either way, like, it seems like all of this financial stuff was coming to a head because he says that when he confronted her about the wage garnishment and asked how they were going to afford Sierra's beauty school, Melissa told him that she had gotten a lawyer and that they had an upcoming court date to appeal a lawsuit judgment. But now he just found out, apparently, that wasn't true. There was no ongoing appeal. And in all her paperwork, he also discovered that she had applied for a personal loan to cover Sierra's tuition and been rejected. And based on the dates of things, it looks like she had just gotten that rejection days before she disappeared.

26:47Brit Prawat:Now, on top of that, Mark tells everyone that things weren't going well for Melissa professionally. Besides the clearance issue, she had also been flagged for performance problems at work. So, Mark's theory that he is telling everyone about is that the pressure must have finally just reached a boiling point and Melissa bolted before it all came crashing down. But, but, he also predicts that she's going to be home before the weekend is over because she has an important work meeting on Monday. Or, you know what, he floats another idea. Maybe Melissa loved Sierra so much that she left on purpose so that Mark could declare her dead in a few months and then collect her life insurance and, like, set Sierra up financially.

27:33Brit Prawat:What? Or maybe she's just hiding out at her best friend's house. Someone should probably check there. So his theory is everything? Everything but foul play, it seems.

27:46Ashley Flowers:Where is he saying that she actually is, though? Like, where does he think she is? Like, the most likely place.

27:52Brit Prawat:I don't think anyone gets, like, a clear answer about that. That's the thing. To the Mondragons, the whole thing sounds less like a husband trying to find his wife and more like somebody trying to rapidly workshop explanations. On top of that, while he's coming up with all the ways that she could have just walked off on her own, he finds time to criticize their search efforts, saying that they're looking in the wrong places, places Melissa wouldn't go because she didn't know them well. And he keeps bringing up his confirmed alibi, even though nobody is asking him about it. So being the crime junkies that the Mondragons are, they start recording their interactions with Mark in the one-party consent state of New Mexico, starting with a call that Trudy made to check on Sierra the next day, Sunday.

28:44Brit Prawat:And she shared that recording with us.

28:47Ashley Flowers:We know exactly what's going on, but I'm not telling no one shit. Okay, well, as long as you're sharing that with the police, that's amazing. Well, you know what I told the cops today that we have information? They're not even calling me. I sat there and knocked on their door yesterday, would not answer the thing. And I finally told the detective, if you're going to go there, I said, I have a lot of information. But if I'm going to go there and you're going to start interrogating me again, I'm not going.

29:11Brit Prawat:Well, we need to be concentrating on finding her. What's that?

29:17Ashley Flowers:We need to find her. She's not there, Trudy. No, no, no. I'm saying, no, what I'm saying is it doesn't help if you're locked up at the police station. You need to be out there. Well, you need to be out there doing. I went over there. I didn't know. You guys never told me that this was going on, that this big old search was going on yesterday. I'm like, what the fuck is going on over here? I never knew about that. I never knew about any of that. No one's telling me what you guys are doing. I could be directing and saying, no, focus on this area. Focus like I did the other day. you're seeing people all over that don't make no sense well we're anyway we are very open for you to share with us what you what you want what you're willing to because you know what awesome and then i i i understand that that that they that they said there was some sort of a drop of blood in here bullshit there's no blood in here and besides okay okay the time frame does not match the only time she could have been hurt by me because i was identified in los alamos you

30:20Brit Prawat:know you were at work mark watch trudi let me say something so maybe you'll understand this

30:25Ashley Flowers:yeah it's so simple if there was a drop of blood if there was blood in this house that means i would have had to hurt melissa before we left to work right correct no determined that's why they let me out over there when they had me over there up i was up in los alamos obviously they determined

30:43Brit Prawat:Yes.

30:44Ashley Flowers:No, I know you were at work.

30:45Brit Prawat:Exactly.

30:46Ashley Flowers:Melissa was fine at one o 'clock in the afternoon.

30:49Brit Prawat:Yes, I know that. You were at work.

30:52Ashley Flowers:No, no, I know that. They should have had a gallon of blood on the floor. No. Right. No. And it makes sense.

31:01Brit Prawat:This call goes on for a little while longer. No matter how upset Mark gets, Trudy tries to keep calm. And, you know, she's not being confrontational at all. She is in information gathering mode. She wants to keep him talking. And that's when he says something that catches her really off guard. Honestly, one of her biggest takeaways is this. And then I changed the locks to all the doors so she would have to, she cannot come in with the key and grab herself and bail. She would have to contact Sierra to open up the thing.

31:33Ashley Flowers:We put cameras up and everything to see if we can't come in. Okay. And you know what? That's a good idea. the cameras because he changed the locks three days after she vanished yeah why would he even need to do that if she left her keys behind dude that's the thing like i don't think he ever explains that i'm like she left her key she couldn't get in anyway i know also i still don't get where she would go like she didn't take her phone it sounds like she couldn't have taken any money she's got nothing with her well i mean not nothing remember she well according to mark and

32:05Brit Prawat:Sierra she's missing from the house is what her toothbrush, her reading glasses, her sunglasses, and then that 90 day supply of her thyroid medication.

32:12Ashley Flowers:Even that is like a little weird, though, right? Like, that's not exactly like a disappearing packing list.

32:18Brit Prawat:Well, the Mondragon say that from the start, they think that Mark was trying to plant the idea that someone came to get Melissa pointing to those unfamiliar tire tracks in the driveway. Remember, as evidence that another man had picked her up. But the thing is, like, he doesn't say who that would be, though.

32:37Ashley Flowers:I mean, is he implying that she, like, left him for another man?

32:42Brit Prawat:It's hard to tell what he's saying because Mark has offered a lot of theories over the months about where she might have gone. Florida, Arizona, Washington. Maybe she left with the help from a contractor that she was having an affair with.

32:54Ashley Flowers:Wait, she was having an affair?

32:56Brit Prawat:No, that's the thing. Not that anyone knows of. I think he's just guessing. Says, you know, it could have been a contractor or maybe a hunter she knew or a photographer from Colorado. Sometimes he insinuates to the family that he knows exactly where she is or who she's with. But he won't give names, which feels so weird to them and weird to me even. Even the theory that she would leave him for another man in general, though, I can't really get my head around from his telling. Because in his first interview, he told detectives that their marriage was great. There was nothing wrong there. But that's not what police heard from other people, some of whom described Mark as egotistical and controlling, a man who allegedly emotionally and financially abused Melissa.

33:41Brit Prawat:And people have different understandings of Mark and Melissa's finances. Some say that she was burdened with paying for everything, even though Mark made more money. So sure, she might have been in debt, but like in their eyes, that's really Mark's fault. And yeah, there were lawsuits and stuff, but records show that the majority of those were against Mark alone. Some people even say that the couple had talked about splitting up after Sierra graduated. And Mark had basically said that everything was his, so Melissa should be ready to just move out. So when Melissa was talking about her plans to stay in Albuquerque with Sierra, it sounded to them more like a marital separation than just like this mom helping her daughter get settled, which is what Mark was saying.

34:27Ashley Flowers:And Sierra had just graduated, right?

34:29Brit Prawat:Like nearly a month before this. So the timing is interesting, which police obviously confront him with. Now, initially, he tells them none of this is true. And he told us the same thing, though he acknowledges that Melissa had told people that stuff. But according to Agent Mata, Mark ultimately confirmed it to police. admitted that he had encouraged Melissa to leave if she wasn't happy.

34:58Ashley Flowers:I mean, so maybe this is why he seems so confident in this walking away theory? Like, he told her to go. Maybe.

35:07Brit Prawat:But then why won't he tell people who he thinks she's with if he thinks that he even has, like, a sliver of an idea? I mean, here's one of, like, the stranger parts of this story. Mark starts putting up these mysterious posts, like, coded language that he says only Melissa could understand. A way to let her know that he's tracking her.

35:28Ashley Flowers:Tracking her how?

35:30Brit Prawat:Or to where? I don't know. He is not an easy guy to get a straight answer from.

35:37Ashley Flowers:Well, and like thinking back, is he talking about like hunting tracking? Like he's like onto her trail somehow?

35:43Brit Prawat:That, yes. And listen, some of her trail that day has already been confirmed by police. The Casillas home didn't have surveillance cameras or anything like that, but there were some outside the shopping plaza where Sierra worked. And there is footage of Melissa, alone, seemingly fine, going to drop off lunch for her daughter. At 12.56 p.m., Melissa's white sedan comes in hot to a handicapped parking spot. Like, she bumps into that, I don't know, I want to call it a guardrail. Like a parking stop. Yeah, and it's so hard that the whole car kind of shakes, so she, like, backs up a little bit. And then like 10 seconds later, she gets out of the car and calmly starts walking down the sidewalk with a sandwich for Sierra in one hand.

36:26Brit Prawat:Then another camera picks her up in the plaza. We get a better look at her. She's in that turquoise T-shirt with a sweatshirt or something like that tied around her waist and jeans. And then a minute later, she is back on that same camera walking back to her car. No sandwich anymore, but she's holding a piece of paper in her hand, that check that Sierra asked her to cash for her. Now, the parking lot camera picks her back up getting into her car, but the video cuts off before we actually see her pulling away. So, I don't know what direction she went in, but she had to have made it home after this since her car, her keys, her wallet, everything was back there at the house.

37:05Brit Prawat:Right. But I don't think Mark believes anything happened to Melissa there at the house. His searches seemed to be more focused in the spot along Highway 518 where Lloyd spotted Melissa.

37:20Ashley Flowers:Wait, I thought he was adamant that could not have been Melissa.

37:24Brit Prawat:Okay, so Mark told us that when that lead came in that first night when police were there, he was totally unaware that the tipster was someone who actually knew Melissa. He dismissed it because he didn't want investigators going on this like wild goose chase. Again, I still think the reason he dismissed it doesn't make sense, whatever. But then he says at some point over the first couple of days, he learned that Lloyd was the caller. And so I guess by Tuesday, July 1st, enough time had passed that he's at least willing to entertain the idea that maybe it could have been. So he drives out to that stretch of highway looking for circling birds, which is like a potential sign of human remains.

38:08Ashley Flowers:Right. But that means he's now on board with a foul play theory.

38:12Brit Prawat:No. I know. Mark told our reporter, Nina, that he never thought Melissa met with foul play. But if Lloyd's tip is true and if Melissa had been injured or abducted, she wouldn't have made it far from that spot. Like, it's summer, it's hot, remains attract scavenging birds. That's why he looked there on that Tuesday morning. Like, you know, in an absence of knowing what happened, maybe everything's possible, even if it's not what he believed. Now, he told us that when he went out that way, he happened to see Lloyd outside in his yard. And so he decided to stop by and speak with him. Police still haven't reached out to Lloyd, by the way.

38:52Brit Prawat:This is five days after Melissa was last seen. And when Lloyd lays out what he actually saw, this is when something shifts for Mark. Because Lloyd says that he never described Melissa as stumbling or staggering when he spoke to her brother. He tells Mark that Melissa was just there one minute, gone the next. And Lloyd didn't actually see her get into that blue truck that he saw or anything like that. But that is kind of the implication that he's making.

39:18Ashley Flowers:Wait, so does Mark think this was Melissa or not?

39:23Brit Prawat:Well, now he seems more convinced that that was her. And if she wasn't injured or acting odd, it actually plays into his theory that she wasn't in distress. She just like left.

39:36Ashley Flowers:And what do the Mondragons think?

39:38Brit Prawat:They've always felt like this could have been her stumbling or not. But even if she wasn't stumbling, the Mondragons still believe that she could have been in danger when she was out there. They think everything about this is screaming foul play. They don't believe for a second that she left willingly. Every theory that Mark has about her walking away is just that, a theory. And a constantly changing one at that with no proof. So after this search, when Mark comes to them again, he's like, I found something that makes me even more positive that she left on her own. I imagine that they're pretty skeptical.

40:15Brit Prawat:But this time, it's not just stories or his word. This time, Mark has proof. Armed with information from Lloyd about exactly where he last saw Melissa and the blue truck, Mark had taken Sierra out to retrace Lloyd's steps. And in essence, he's trying to retrace Melissa's. Not with old school hunting tactics. He was looking for any house with a surveillance camera pointed at the road. And dude hit pay dirt. He finds a video from a house off of Highway 518. that you have to see to believe. The timestamp is 2.18 p.m. on June 26th when Melissa, alive and well, not stumbling, comes into camera frame.

41:03Brit Prawat:She's alone and walking at a brisk pace, not as if she's scared or anything, just purposefully. She's wearing what looks to me like the same outfit we saw her in when she dropped lunch off to Sierra. But now her hair is pulled back and she's carrying a small backpack on her shoulders. For the Casillaside, this video is proof that Melissa walked away on her own two feet by choice. And Mark told us he wasn't thinking about vindication or exonerating himself at that moment. But it's hard to ignore what this video means, that there might be a whole nother side to this story. A completely different narrative about how and why Melissa went missing that will have you questioning everything.

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43:53Brit Prawat:Just when everyone was beginning to believe that maybe something happened to Melissa in her home, video footage emerged that proved Melissa was out of her house and walking down Highway 518 alive and well. Something her husband, Mark Casillas, has been saying since early on. And his version of events reads like a completely different book. Not a shady, callous husband who had his wife killed, but a frustrated one who says that his wife abandoned him and their daughter, leaving behind not so much as a note or explanation. Even then, though, Mark says that some of the allegations against him aren't just misinterpreted.

44:35Brit Prawat:They're downright wrong. So let's go back to that first night when police were there and the Mondragon showed up and told us that Mark was hostile and bad-mouthing Melissa. Mark told us that never happened. He says that he didn't speak with them at all that night. He was completely focused on dealing with police. Then there's that argument that we're told he and Melissa had that morning about the e-cigarette, right? He, like, caught her vaping. It takes him a few interviews to come clean about any relationship issues to police. But he says that he only withheld that information because he wanted them focused on finding Melissa, not eyeballing him.

45:12Brit Prawat:He also says that this, like, fight or argument wasn't some big blow-up, just this, like, minor marital spat. And he denies that Melissa ever cursed at him or told him to find his own ride home.

45:23Ashley Flowers:But didn't that come from him in the first place?

45:26Brit Prawat:Well, that's what the Mondragons say, that he told them that. But when we talked to him, he said, no, that's not true. He never said anything like that. We also asked him about an early theory he apparently mentioned, the one that really rubbed some people the wrong way, right? About Melissa making herself disappear so that he could declare her dead and then get the life insurance money for Sierra. Now, Mark, to us, never really confirmed or denied whether or not he said that. But what he did tell us is that he knows a person has to be missing for years before any of that becomes legally relevant anyway.

45:59Brit Prawat:And actually, police come to learn that Melissa didn't even have a life insurance policy anymore. She used to, but that policy expired years ago, though I'm not really sure if Mark knew that. And Melissa's financial records show just how bad things had gotten. Investigators find out that she had negative account balances that swallowed up half her paycheck the second they hit. And maxed out credit cards that she hadn't made payments on in months. And let's talk about the physical evidence, like the muddy boots, right? Mark says that he had recently asked Melissa to refill the fish tank, which was right above where the boots were sitting.

46:40Brit Prawat:And so he thinks that maybe she might have spilled water and re-wetted old, dried mud that was already on them from a previous hunt. which investigators think is plausible.

46:50Ashley Flowers:And the boots mattered like a lot less once his alibi was confirmed, though, right?

46:55Brit Prawat:Yeah. And like the same logic, I think, then extends to the blood, if it's even human blood. Right. We actually still don't know that for sure, because what we know is they did that presumptive test. It is blood. Police still didn't have the lab results back when we last spoke to them. But Mark is saying, listen, that could have come from processing game or even from their dog. But either way, it's hard to make it mean much when we now know, to your point, Melissa was clearly alive and walking on her own after she left the house.

47:27Ashley Flowers:Well, and even if it does come back as her blood, like, she lived there.

47:32Brit Prawat:And there's that, right. It's not like it's like this pool or anything. So blood and boots, put those aside. There's also the tech of it all. Investigators find out that Melissa emailed a co-worker the morning of June 26th saying that she'd be late because something had come up with her daughter, Sierra. That wasn't true. So it seems like Melissa was telling everyone a different story so that she could make herself free that day. Mark TBD exactly what she said to him in the car on the drive there, but he seemed to think that she was going to be at work. She told Sierra that she'd come home because she forgot her badge, which she had with her, we know.

48:14Brit Prawat:But she told her job something was up with her daughter. And then what they pull from her phones, this is the detail more than anything else that makes me think Melissa had some kind of plan. Because forensic downloads show that both of her phones, they weren't wiped clean at the same time. The older phone that she had, the one that she'd already replaced, that was factory reset at 8.02 a.m. And then her newer phone was wiped at 1.38 p.m. I obsessed over this because my gut tells me that if someone else wiped the phones, I would think that they would have wiped them both at the same time. Right?

48:57Ashley Flowers:I mean, unless they didn't know that she had two phones, like wiped one thinking it was the phone, realized their mistake and had to come back and wipe the second one.

49:07Brit Prawat:But like we know that Melissa must have reset that first phone at home, right? Because remember, she's there when Sierra woke up at around 745, right? So the one that she doesn't use, like in my mind, the one she doesn't use or she's not going to need that day gets reset in the morning. Just get it over with. Then she has her phone through the day as she's like bringing Sierra lunch, right? You can't even say someone else has her phone is like sending these messages. We have her on video bringing Sierra lunch at one o 'clock. Then Melissa sent her daughter that last text message at 1.33. And I mapped everything.

49:37Brit Prawat:Like all of that lines up to where if Melissa is at home when that reset happens at 1.38, then she could have very realistically left then and then been at the spot she is seen at on Highway 518 on camera at 2.18. That's all the things that make me believe like it had to be her who reset them. But why did she reset them? This is the thing. I don't know. I mean, I feel like there's two scenarios, right? Like if she reset them, two scenarios. And like in those scenarios, it's her walking away, right? Like so one, she took her own life, in which case, I don't know why you would have to wipe all of your devices.

50:19Ashley Flowers:I mean, unless you were hiding stuff you didn't want anyone to ever find out about. But like, wouldn't you leave a note for that?

50:25Brit Prawat:Like, to me, this is like if you're if you're so overwhelmed by like your marriage or your financial situation or whatever, like, why would you leave this mystery behind? Like, so to me, this doesn't make a ton of sense. So the second option is she walked away to start over, to live somewhere else, be with someone else, whatever that looks like. And in that scenario, maybe something on those phones would have told people exactly where she was going or like given away a plan that she didn't want found out.

50:55Ashley Flowers:And have police pulled her iCloud data?

50:57Brit Prawat:This is where it goes like a layer deeper. They tried.

51:01Ashley Flowers:Okay.

51:01Brit Prawat:She didn't just wipe her phones. Apple told them that her backup had been completely scrubbed to like her iCloud with nothing left to recover.

51:13Ashley Flowers:I didn't even realize that was possible. Is that actually possible?

51:17Brit Prawat:It is, but it's not as simple, right? Agent Ezekiel Esquivel Mata says that that level of digital erasure takes intention. Like it's more than just hitting a few buttons on an iPhone. So he does think, though, that like Melissa would know how to do it. Or I assume at a minimum could Google it. This is not like an impossible thing to do. It's like supposed to be your data. You should be able to erase it.

51:42Ashley Flowers:Right. So is everyone pretty much in agreement that Melissa is the one that wiped everything?

51:47Brit Prawat:Not necessarily. No. Like the Mondragons really wanted investigators to geofence the Casillas home to see if maybe other devices connected, like either to her device or the internet or whatever, Google around that time. But Google actually stopped providing that data to law enforcement in 2024. But they're really adamant they don't think that Melissa would have done this. They say that she was very sentimental, like the kind of person who held on to every photo and every memory. And so they can't imagine a world where she would decide to erase all of that. And really, that disagreement over what Melissa would or wouldn't do, over who she really was, I think that's really at the heart of everything.

52:32Brit Prawat:Because the tension between the two sides in this case goes way beyond the investigation. Mark and his daughters say that the Mondragon spent years shunning Melissa over her separation from the Jehovah's Witness faith, that they barely knew Sierra, didn't even meet her until she was a few years old. and they claim that they are only now presenting themselves as people who were like central to her life. But we asked the Mondragons about this and they totally deny that. They say that Melissa was very present in their lives. There's regular calls, overnight visits, helping with medical appointments.

53:05Brit Prawat:Like Melissa had taken time off work to take her mom to the hospital for a knee replacement and then she was going to take care of her after that. That appointment was scheduled for June 30th, four days after she vanished. But whatever the truth is about those relationships before June 26, the aftermath made everything worse. Mark and his daughters say that the extended family cut them out of the search entirely, withholding incoming tips, blocking them from the Find Melissa Facebook page, and launching a GoFundMe without ever consulting them. Now, the Mondragons say that donations will fund a reward for information leading to Melissa's safe return.

53:44Brit Prawat:But Sierra feels like they exploited the tragedy, basically. And the Casillas side also says that the Mondragons fueled rumors that Mark was abusive and directly involved in Melissa's disappearance. Both things that he and his daughters vehemently deny. Then there are the search efforts themselves, which the Casillas side thinks the Mondragons wasted critical resources on. directing people to places Melissa would never go, they say. And they blame her brother for bungling that whole Lloyd tip early on. I mean, the whole stumbling, staggering description, Agent Mata says that was the reason investigators didn't follow up, not a contributing factor, the deciding factor.

54:27Brit Prawat:And more than that, according to Mark, Lloyd told him that the blue truck that he saw was a newer model, not an older one like the family had originally relayed. So like Mark, Agent Mata blames a chain of bad details that cost them days.

54:41Ashley Flowers:But let's be real here. It was still Mark who told police not to check it out in the first place. And like, since when does the missing person's spouse call the shots during investigation? Like, the responsibility is on the police here.

54:53Brit Prawat:And I completely agree with that. And remember, they didn't interview Lloyd until after Mark talked to him. And I also have to say, like, a huge part of why I think there is such a great divide between families is that the investigation has not felt robust. Like, it leaves each family feeling like enough isn't being done, which leaves so much room for suspicion and speculation. Like, forget the Lloyd of it all. You took Mark's word and didn't talk to Lloyd until after Mark did days later. Fine. There was this other tip that came in, and I was shocked at how it was handled. So a couple of days after Melissa disappeared, this tourist was near a church in Taos, New Mexico, when she noticed a man on horseback who appeared to be praying.

55:45Brit Prawat:It was an interesting sight, so she decided to take a photo of him. But then she noticed that he seemed to be crying and apparently was intoxicated. So she approached him and asked if he was okay. And he told her that they had been searching for his missing cousin up in the mountains and that he'd found her body decapitated. Now, I don't know if he gave a name for this so-called cousin before he rode off. And that tourist didn't know what to make of that interaction. She, like, didn't have any context. But later that night, she saw a missing person poster for Melissa. and I guess she put two and two together so she reported the encounter to police and gave them a copy of the photo that she had taken.

56:29Brit Prawat:Investigators showed them to Melissa's family and they weren't related to the man, but they did know him. Her brother recognized the guy as 64-year-old Rick Valerio, known as Wild. He works with horses near a local golf course And guess what he drives? A blue Dodge truck. Agent Mata went to speak with Rick on Monday, July 21st. When did they know about this tip? So that part's unclear. The family seems to think that it was right away. But Mata insinuates that it was later, which is why they're not talking to him for like a month. But I don't want to get hung up on the police response time because I think the proper thing to get hung up on is the interview itself.

57:16Brit Prawat:Because according to police, once they talked to Rick, he admitted that he helped with search efforts, but he denied everything else. So they just dismissed the lead. They think Rick concocted the story for attention. So the Mondragons actually got the body cam footage of this interview, this thing that makes them, like, rule him out. And be prepared to scream. I'm going to play you the entire interaction between Agent Mata and Rick Valerio so you can make your own determinations about the questions asked and the answers Rick gave and the conclusion that those led police to. It's still daylight when Agent Mata pulls up to Rick's home and calls out to him.

58:03Brit Prawat:Hello, stay please. Mata won't ever enter Rick's home, and Rick never fully comes outside. As far as we know, the whole interaction takes place with Rick fully or partially behind his metal gate door. Richard home.

58:17Ashley Flowers:Yeah, Richard. Hey, Richard, how you doing, bro? I'm AJ Mata with State Police, bro. You're not in any trouble, bro? I'm here just doing some follow-up with you. No? Yeah, we heard, bro, that you were talking about finding a decapitated body out in the monte, bro. What? that you found a decapitated body without its head there in the monte. No, no. Are you sure? I'm sure. Because I tracked it down to you, bro. The people that heard it took a picture of you on a horse there in the plaza. You're cruising around on your caballo, on rojo. Yeah, but under the plaza. Yeah, here, right here in the church, bro.

58:53Ashley Flowers:Over here. Yeah. No, I know. I was helping with our circuit over here. Yeah. Yeah. You were there, I guess, you know. One of the days. Over here in the search and rescue. Yeah. A couple of weeks ago. Yeah. I was helping them there. Yeah, but you didn't find anybody without their head, bro, because that's what I'm hearing, and that's why I'm here. No. To see what's going on with that, bro. No, no. Are you sure? I'm sure, bro. Because I wouldn't be bugging, bro, if the information didn't sound pretty serious. That's why I'm here wanting to hear it from you. Nada. Para nada, Mr. Richard. I'm sure, bro.

59:29Ashley Flowers:Nothing. Why would I hear that then? I don't know. Why? And this is what I heard, bro, that you're cousin to Melissa and that she'd been missing for a few days. I don't even know about her. And that you were up in the monte and that you were all sad because you found a dead body without its head. And that the head was just tossed there to the side, bro. I don't even know her. You don't know her? Uh-huh. You were just helping with the search. Yeah, I work for that search yard over here. Yeah. No, I don't even know her. I'm already getting to her nothing. Okay. Do you remember what you were doing on the 26th of last month, bro?

1:00:03Ashley Flowers:That's a Thursday.

1:00:06Brit Prawat:I'm probably in Albuquerque next year.

1:00:08Ashley Flowers:You're in Albuquerque? And that blue Dodge is yours?

1:00:11Brit Prawat:Yeah.

1:00:12Ashley Flowers:Okay. So you didn't go picking up no girls or anything down there on 518, bro? Para nada?

1:00:16Brit Prawat:Para nada.

1:00:17Ashley Flowers:Okay.

1:00:18Brit Prawat:No, I swear.

1:00:19Ashley Flowers:No, no, you're good. I'm just trying to sort it out, bro, porque ya sabes, man, people freaking talk. And your name came up, bro. your name came up that you had information about a dead body and stuff so i'm like okay well let's talk man let's see because at the end of the day i got a job to do you know and i just try to follow up with everything that i get no i don't even know nothing about that no okay richard what's a good phone number for you bro in case i have questions what have you heard bro nothing I don't even know her, actually. Or here, or the house. Oh, you said you were helping out, bro.

1:00:55Ashley Flowers:I'm sure you heard something. I heard about it. Yeah. I work for the CK, I don't know. And we had some problems with the Bieber fans over there. Yeah. And there was an officer over there in the search and rescue. His name, I forgot his name. No, you guys had just shown up there. I remember talking to you. Yeah. Yeah, but you don't know anything about no dead body, ni nada, bro. Nada. Are you sure? I'm sure. Okay. I'm just here just checking bro. Like I said, this information was passed on to me today and I was like, well, let's go knock on some doors and see what's up. Give me a call bro. Okay.

1:01:29Ashley Flowers:Well, no, Mr. Richard, I'll let you get back to it, man. Gracias.

1:01:37That's it.

1:01:39Brit Prawat:Tell me there was a follow-up. Agent Mata says that he did speak with Rick again at some point, but I don't know what came of it. And we don't really know much about Rick even. Old court records from the 90s mention multiple DWI charges. I don't see anything violent on his record. But there is some weirdness here, right? That like I don't know how you can ignore. and pieces that deserve, I believe, more investigating. I mean, this bizarre statement allegedly about a decapitated body, the odd behavior, the blue truck. I mean, did they look at the truck? Like, what if he hit Melissa? Yeah, there's no looking into the truck as far as I know.

1:02:19Brit Prawat:But I mean, like, the idea of, like, him knowing he has, like, DWIs hitting, I think it's an interesting theory, like, Rick-related or not. People said that Melissa used to walk on Highway 518 before. Like, is it possible that she was just out there for a walk and then some kind of accident happened. Yes, maybe that's possible. But then even in that theory, I come back to the phones. You don't wipe your phone and your iCloud if you're just going to go on a walk. So I don't know. This Rick thing, it might be nothing. But this whole interaction that Mata had with Rick, I think this is what casts a shadow over everything now to me.

1:02:54Brit Prawat:Because when they say that a lead went nowhere or that they cleared someone, I question what that means. How deep did they really go? Like another example, remember Diego? The very first person that Melissa's family was suspicious of before they ever were questioning Mark. This is Sierra's ex-boyfriend, who after the car accident had like some brain damage and apparently had been making threats sending Melissa like sexually explicit text messages. Well, another agent who worked the case said that Diego wouldn't speak to them at all. But then Agent Mata says that Diego did give an initial statement by phone.

1:03:32Brit Prawat:And I guess he explained away the explicit text that he sent Melissa. He told police that he meant to send it to someone else. But then when investigators tried to get him to give a formal statement, Diego said that he couldn't make it. Then he told them that he wanted his attorney to be with him. But he never said who his attorney even was. And it doesn't seem like police are pushing. Now, we couldn't get in touch with Diego. And I'm not saying that he's involved. I just want to be able to close the loop on some of these things. But I keep finding that really hard to do. Though, for what it's worth, Sierra doesn't think that Diego had anything to do with her mom going missing.

1:04:11Brit Prawat:She doesn't see how he could pull something like that off. Now, for all the things that I think may not have been done, I do want to highlight the things that were. Police poured a lot of resources into the physical search for Melissa. They used helicopters, drones, tracking, and sent canines all through the dense mountainous terrain around Highway 518. Although official searches didn't start until days after she disappeared. But they ran facial recognition alerts across the nation. But to date, nothing has ever come of that. And there has been no bank activity, no passport applications in Melissa's name, no driver's license changes, no prescription refills for her thyroid medication, which she needs as a thyroid cancer survivor.

1:05:00Brit Prawat:So there is just no trace of her anywhere. But the Casillas side, they do still think that she's out there living a new life. Mark's most developed theory to date is that Melissa connected with someone through a job that she had applied for shortly before she disappeared, a position with a Los Alamos subcontractor. He thinks that whoever she met through that process offered to help her escape her financial situation, like gave her a job, helped her disappear. And to Mark, that idea gets some fuel from someone commenting on social media claiming that Melissa is safe in Seattle where that company has ties.

1:05:41Brit Prawat:Now, investigators confirm that she did apply for this job. She was even selected for the position. But the company told police that they never managed to reach Melissa to even extend the offer. She had already vanished by then. And according to Melissa's sister, Trudy, and Trudy's daughter, Jasmine, they say the position was actually based at the same Los Alamos site that she had already worked at, so she wouldn't have needed to go anywhere for it. Now, there's one more thing that makes Mark certain that Melissa is fine. It's this weird interaction that Sierra had with a woman not too long after her mom vanished.

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1:08:25Brit Prawat:According to Mark and Sierra, not long after Melissa went missing, this woman and her fiancé or maybe her husband show up at Sierra's work out of nowhere. Now, apparently, this woman was a longtime friend of Melissa's. And she and this guy had driven all the way from Colorado to see Sierra, who didn't even recognize the woman, by the way, because if the two of them had ever met at all, it was when Sierra was really little. And that's the part of why this whole encounter is so bizarre. So supposedly, the woman made this 300 or so mile trip to Taos, New Mexico to give Sierra a$50 high school graduation gift, which I feel like you could have mailed.

1:09:08Ashley Flowers:Yeah.

1:09:09Brit Prawat:But while she's there, she makes sure to get a photo of her and Sierra together. And she makes these cryptic comments like, I have psychic abilities and I feel like Melissa is fine. And if your mom really left on her own, she always knows where to find me. She also told Sierra to keep her visit a secret from Mark, which obviously she did not. So Mark starts thinking, maybe Melissa sent this woman as a proxy of sorts to check on Sierra. They were super close. She really loved Sierra. So like hence the photo. Maybe Melissa wanted to know that Sierra was okay after her mom vanished into thin air.

1:09:53Brit Prawat:Now, the kind of strange part to me is that Mark didn't bring this to police right away. He said that he wanted to wait and see if Melissa would contact them. But after like a week goes by and there is no contact, he finally lets them know.

1:10:09Ashley Flowers:I mean, was she in contact with that friend before she went missing?

1:10:13Brit Prawat:Well, Sierra says that Melissa had reached out to this woman with an invite to Sierra's graduation party. But I don't know if that's something that the woman told her or if Melissa had relayed that to Sierra at some point.

1:10:25Ashley Flowers:OK, and like I know Melissa's phone, both of them were wiped, but they can still get like call and text records from like the cell service provider. So we should be able to see, like, who she was in contact with before she was vanished, regardless if the phones were factory reset or not, right? Yes.

1:10:42Brit Prawat:Theoretically, yes. But last I heard, her records, and mind you, she went missing June 2025, those records are still under review. So I don't know.

1:10:52Ashley Flowers:Okay. And did they get anything from Mark's phone?

1:10:56Brit Prawat:Agent Mata told us that there's nothing on Mark's phone that suggests he was plotting against Melissa. I don't know.

1:11:02Ashley Flowers:That's, like, not an answer.

1:11:03Brit Prawat:Well, and I also don't know, like, wait, so, you know, you've been through Mark's phone completely, but not the person who actually went missing. And I know, like, right, Mark had his physical phone.

1:11:12Ashley Flowers:But he has his phone there and also, like, I don't know, priorities?

1:11:17Brit Prawat:Yeah, I don't know. I don't know what's going on there. Obviously, they would have to get a warrant from the cell provider. But, like, all this time later, I feel like we should be able to, like, have some answers about what was on her phone. Now, all in all, Agent Mata's interpretation of all that he has so far, TBD what's still under review, is that Melissa probably left on her own. Police have not officially ruled out foul play, but Mata's gut says that she's alive. Legally, she's classified as missing and endangered because of the risk of her being without her thyroid medication. But as far as law enforcement is concerned, there's no suspect, there's no crime scene and no evidence that anything happened to her after that camera caught her on Highway 518.

1:12:05Brit Prawat:But the Mondragons think that is dead wrong. And the dominant theory among them still is that Mark is somehow connected to whatever happened to Melissa in some way. Though they haven't ruled out other possibilities, including a random abduction while Melissa was out walking. The only thing that they feel certain of is that Melissa would not willingly abandon the daughter that she loved so much without a word. Now, Mark denies any involvement, and he got pissed when our reporter Nina asked him point blank if he killed Melissa. He said that no one has ever asked him that before.

1:12:44Ashley Flowers:No one? Not even the police?

1:12:46Brit Prawat:I guess not. But considering the interview that we saw and heard with Rick, like, honestly, that wouldn't surprise me.

1:12:55Ashley Flowers:Okay. I don't know. I don't usually ask this because normally I can tell. But I'm kind of dying to know, like, what do you think?

1:13:04Brit Prawat:This one genuinely has me in knots. Like, there are very few cases that have me flip-flopping back and forth by the day the way that this one does. You cannot argue with that video. Like she left her house on her own. She had a backpack. She lied to everyone about what she was doing that day. I do believe that she wiped her phones. It is so easy to look at this and say that she left. Especially the more stories we hear about other women who have done the same. I feel like mothers have this different societal expectation than father or like men do. And it's hard for us to wrap our minds around a mom leaving.

1:13:48Brit Prawat:But it does happen. And I don't know if you saw the story that, like, everyone was recently passing around about that woman in North Carolina, that mom who went missing in, like, 2001.

1:13:57Ashley Flowers:Yeah, Michelle Hundley-Smith.

1:14:00Brit Prawat:So, like, her husband reported her missing. Suspicion fell on him. Everyone assumed the worst. And then Michelle turned up alive in February of 2026, having quietly built a whole new life somewhere else for more than two decades. So it's not beyond the realm of possibility.

1:14:19Ashley Flowers:So, I mean, my head's like spinning around all of this too, but I'm wondering about something that you mentioned earlier. Like, if everything was closing in on her the way people are describing, is it possible she took her own life?

1:14:32Brit Prawat:That's like the one theory that no one seems to really buy into. Like, Sierra is willing to believe that her mom left, but she doesn't think that she would ever do that to her. She thinks that like, kind of what I said earlier, like at least she would have left a note. She's not going to leave them wondering. I mean, if you're still like asking what I think, I agree with that, right? Like I keep going back to the phones. Like I don't think you need to wipe your phone and your iCloud if your plan is just to take your own life.

1:14:59Ashley Flowers:Yeah, but you also don't really need to do that if you're just walking away. Like just leave them behind.

1:15:05Brit Prawat:Well, unless, like I said, like there's something on the phone. There's like communications with someone or something that has to do with a plan. Now, I'm about to go way out there for a second, so stay with me. Have you seen the connections that people are making recently around the missing scientists, researchers, military officials?

1:15:28Ashley Flowers:Yeah.

1:15:28Brit Prawat:For those who are not in the know, this is something to pay attention to. The short version of this is that a handful of U.S. people connected to places like Los Alamos and NASA have either died or disappeared over the last few years. At the time that we're recording this, the running list is at 11. And there's this theory that these are somehow connected to maybe foreign espionage that like countries like China or Russia are targeting people with access to sensitive U.S. technology. To me, that's the least scary scenario. The scarier one is that the call is coming from inside the house or even that private corporations who make a lot of money and energy don't want us figuring out and unlock for free energy.

1:16:18Brit Prawat:And I'm not just pulling this out of a hat on my own. So a former FBI assistant director named Chris Swecker has been vocal about the links that these people have. All mostly connected, not directly, but like in the type of work that they do. Now, he's not claiming specific knowledge of any of these individual cases, but he believes that the patterns are suspicious enough that the FBI needs to stop treating them as isolated incidents. and start pulling resources to look for links. And the feds are apparently involved now. Newsweek reported that the FBI is investigating the series of cases as of late April.

1:16:57Brit Prawat:And I bring this all back because Melissa's name has appeared on this list, circulating in news coverage of this pattern. So we reached out to Swecker directly to see if he knew anything beyond what was making kind of like the rounds in the tabloids and stuff. He didn't. But he did clarify that he's not suggesting that all of the cases are connected, which I feel like is like what they were saying.

1:17:23Ashley Flowers:Which is, yeah, feels confusing.

1:17:25Brit Prawat:According to various news coverage, on paper, a few of these cases have already been explained away. A drowning, a murder by a former classmate, cardiovascular disease, a suicide. But Swecker's bigger point was more like, they might not all be connected, but like everyone counted in this potential group worked near or with sensitive stuff. And he says that foreign intelligence services will go after people in those positions, even admins, because they like know who's in what meetings. They know who works where. They know what schedules look like. Melissa Casillas, that was her role. She was an assistant, an admin.

1:18:04Brit Prawat:So what information would she have had access to? As you can imagine, I don't have the clearance to know that. I don't even know, truthfully, if police could get clearance to know that. And listen, the timing is weird around when she goes missing. Like, we don't have time to go down the whole list, but I'll give you, like, a few examples so you kind of get a sense of what people are talking about online. So on May 4th, 2025, this is a month and a half before Melissa goes missing. A retired Los Alamos employee named Anthony Chavez walks out of his home, leaving behind his wallet, his keys, his cigarettes, car in the driveway, no cell phone, disappears.

1:18:44Brit Prawat:Then on June 22nd, 2025, this is just a few days before Melissa goes missing, 60-year-old Monica Reza went hiking with two companions. At some point, one of her companions is like 30 feet ahead of her. He turns around, gestures to show her like which direction to go in. She acknowledges him. Moments later, when he looked back again, she's gone. Has not been seen since. What? Now, that was in California, not New Mexico. And Monica worked for NASA, not Los Alamos. But then you have Melissa going missing, June 26. And then closer to Melissa's home, William Neal McCasland, a retired Air Force major general who once oversaw the lab that funds work in the same aerospace field that Monica worked in, He goes missing February 27th, 2026.

1:19:35Brit Prawat:Walks out of his Albuquerque, New Mexico home with a gun and his wallet while leaving behind his phone and other belongings. And then poof, gone. Now, I mean, you can see this is very tenuous, but the coincidences have people asking questions. Melissa especially could have been an easy target if she had the right information or connections, right? Like she was in a bad financial spot. Someone promises her a new life or a new start.

1:20:08Ashley Flowers:But she's identified as a good target by someone. They see all the trouble she's in. They offer her a way out. She takes it, leaving her family behind to clean up the mess.

1:20:20Brit Prawat:Yes. Yes. But like, I mean, her family's got to clean up the mess if she just walked away on her own. Like, so, I mean, to me, that's not like any less of a reason why she wouldn't have done it. And remember her and her husband, they just got their clearance taken away. I'm telling you, like, I don't know.

1:20:32Ashley Flowers:And this could like begin to explain how she could start over without her idea of her popping up, like how she'd get more meds. Like she would have this whole new identity.

1:20:40Brit Prawat:Like in a way easier way if someone's helping you. Right. Like I no matter what, if she walked away, I think she needed someone's help to do that. But then come back to the phones. It's always like the phones for me. If she walked away connected to this thing or not, why wouldn't she just take her phones and get rid of them? Like, I know you want to keep them.

1:21:02Ashley Flowers:But like, right, like keeping them, keeping them active, tracking. Right. So like factory reset them, but toss them in your bag and get rid of them somewhere else.

1:21:09Brit Prawat:Dump them in some water, like put them in like in the mountains, like put them in a dumpster. Like there's something about that part that like or even like leaving her phones is like is that like a plant? Is this like a weird red hair? Why do you leave them? I mean, I guess unless you want your like them to have like phones are expensive. You leave them behind because they're free phones. So you can get like conspiratorial. But then, you know, you remember that we see her on camera walking alone after the phones are white. And I don't know, you just keep going around and like, where was she going?

1:21:42Like, I just I don't know.

1:21:44Ashley Flowers:I mean, maybe whatever instructions she got for wiping the phone, like from we were saying Googling it, but maybe from someone, whatever. Maybe they said it was better if she left them behind. So there was like no way to track the actual like hardware device itself.

1:21:58Brit Prawat:Maybe. Listen, it doesn't have to be connected to all these other cases. In fact, one thing that everyone we spoke to seems to actually agree on, and there are like few of those things. They do not believe that Melissa is connected to these other scientists or whatever else is going on. Mark told us that he thought the theory was BS. Jasmine does not think it holds up either. And Mata specifically didn't even know anything about Anthony Chavez, who was like the one person I mentioned who was connected to Los Alamos directly. Right. But it would be a completely different jurisdiction because he lived in Los Alamos.

1:22:39Brit Prawat:And when Mata talked about it, he said, you know, I'll look into it. But he's like, you know, those places are compartmentalized by design. They're set up so people only know what they need to know for their job. So I think he was saying that, implying that it's like unlikely that Anthony and Melissa were on the same thing.

1:22:55Ashley Flowers:Ever cross paths. Yeah.

1:22:56Brit Prawat:But I don't again, I don't know anything about the work that she did. And I highly doubt I will ever know about the work that she did because until her clearance just recently got revoked, like she, I think, was working on like high clearance stuff. So I don't know, like this missing or deceased scientist thing, it has me down like a genuine rabbit hole. Like, I mean, I hope to come back out of it someday with like a more complete episode on it. But like, one, it's a hard nut to crack when practically everyone was working on top secret shit. And two, I actually think I've already like tripped some wires and you laugh, but like genuinely have people monitoring what I'm like getting my nose in.

1:23:36Brit Prawat:So this is always my reminder to you, to everyone, that like I know how to swim. I love my life. I'm as safe as safe can be. So like if I so much as get in a fender bender right now, it should be considered suspicious. Like there was this one scientist who's on this list, Amy Eckridge. And her case is wild. People should go look it up. But she was on a Zoom call with somebody that got recorded. And she's like, the reason I stick my neck out is because at least if my head gets chopped off, people will take notice. If you don't do that, they bury you and nobody talks about it. So in the spirit of sticking my neck out, any crime junkies out there who want to point me in the right direction, tips at audiocheck.com.

1:24:16Brit Prawat:And listen, while I absolutely believe that something scary is happening to people who work in aerospace sciences, it's probably not the solution that we're looking for in Melissa's case. Right? Like if we go Occam's razor, that would suggest that the simplest answer is likely the right one. Melissa was in a bad financial spot. She was planning to move away when her daughter went off to beauty school, but the loan application for that had just gotten rejected. What was she going to do now? She very clearly told everyone different stories about the day that she went missing. Her phones were wiped.

1:24:53Brit Prawat:Her iCloud was wiped. And after that, she is seen walking alone down Highway 518. The simplest explanation is that she chose to walk away and did it on her own. And some days I really believe that. But then other days, I'll get a new tidbit of info that makes no freaking sense. Like we've been talking to family and reporting on this for months and months and months. But right as I was finalizing this episode, Nina peened me with another curveball. You know that friend from Colorado that checked in on Sierra?

1:25:30Ashley Flowers:Super randomly with like$50 for high school graduation gift.

1:25:34Brit Prawat:We just found out that police did find and talk to that woman. She denied the entire thing. What? She says she hasn't been to Tau since 2014. She didn't visit Sierra. Denied even knowing Melissa or Sierra. and said that she was confused as to how or why her name was even being brought up in the investigation. Wait. Dude, this is... But there's like, but what? This is the weirdest thing to me. Now, we tried reaching out to this woman, but as of this recording, we've been unsuccessful. If she hears this, I would love to talk to you. Again, my email, tips at audiochuck.com.

1:26:14Ashley Flowers:Wait, so this visit didn't happen?

1:26:17Brit Prawat:I don't know. Mark and Sierra both still say that this thing happened. I just can't get to the bottom of who this woman is. Like, did she have ties to Melissa and now she's distancing herself? Did she, like, make up ties to Melissa and she's connected to something or someone? If you don't believe that this woman, whoever she is, if you don't believe she's lying and you want to say that, like, Mark made this story up, you have to remember. Sierra's in on it. Sierra is the one who saw her. Like, say whatever you will about Mark and Melissa's relationship. Sierra and her mom were so close. I cannot imagine why on earth she would ever make anything like that up.

1:26:59Brit Prawat:I don't think that that happened.

1:27:01Ashley Flowers:So are we like circling back to the conspiracy theory then? I mean, like, it crossed my mind.

1:27:08Brit Prawat:I don't know what to believe about this woman. I am just hoping she reaches out so we can sort all this out. Again, I mean, we know that, like, interviews are quick. Maybe they're not thorough. Maybe something's lost in translation. We're missing, like, a very simple explanation. I don't know.

1:27:24Ashley Flowers:Do you think that there's any world where Ciara would protect her dad if he asked her to go along with something? Like, she's already lost one parent. And if everyone is trying to come down on your dad and you believe in your heart of hearts that he's innocent, like, if he asks you to do something.

1:27:41Brit Prawat:I see where you're going, but like, no, it doesn't seem like she would do something like that from talking to her. But I will say that there is something about Mark that I still just can't quite figure out. Like, I've tried to tell this story in as streamlined a way as possible, but there were all these rabbit holes along the way that often came from stuff that he said or did that was odd, but then ultimately led nowhere. Because that kind of, like, unresolved weirdness is all over this case, casting a shadow. Like, for instance, and like I didn't even get into this earlier, Mark had originally told a story about the morning of the 26th when he and Melissa drove to work that involved them stopping at this particular gas station on their way.

1:28:26Brit Prawat:And so in part of like looking for Melissa and looking into this, police pulled footage. They were never there, which seems fishy as hell, except security footage put them both like going through the gate at Los Alamos after this, like when she's dropping Mark off at work.

1:28:42Ashley Flowers:Yeah. And like we also see her like the rest of the day until 2.

1:28:46Brit Prawat:Yeah. She brings her daughter lunch. She's on camera. She's by herself. She seems fine. So it's why I didn't bring it up early. It means nothing. But then you're like, well, then where did this even come from? Because you're not talking to Mark like a year later. Like it's right when it happened. And Anna was like, what's with him being so defensive and aggressive? Like I honestly get him acting like that towards us. Like we flat out asked the guy if he killed his wife, like who he believes walked out on him. But he was like this with her family long before we came along.

1:29:15Ashley Flowers:I mean, do you think her bringing Sierra lunch was like a little way of saying goodbye? Like we haven't really talked about like if that was something normal for her to do. Like if she brought Sierra lunch often, if it was something that they did together.

1:29:27Brit Prawat:I assume no, because like she would normally be at work, right? Like she just doesn't go to work today and that's why she's doing this. And so I think it's easy to be like, oh, yeah, she wanted to see her one more time. But like if this was a goodbye, it was the shortest goodbye ever. Like she is literally in and out giving her this sandwich in like a minute. So maybe, maybe she wanted to see her one more time, maybe not. Like I feel like this is one of the things you could read either way. Was this just like a mom doing something nice for her daughter real quick because that's just the kind of mom she was and it wasn't a long interaction because she planned on seeing her later at home?

1:30:00Brit Prawat:Or was this a goodbye? One more look at her baby girl who she knew she might never see again. One quick glance, hurried, because she had to get moving before her family started coming home. Then even that doesn't make sense because why would she wait so long to leave? Like, we haven't talked about that. Like, she could have gotten a way better head start if she had left in the morning.

1:30:22Ashley Flowers:Right, because no one, like, was, she had told so many stories to kind of free up the day, explain where she was.

1:30:29Brit Prawat:After Sierra goes to work, she doesn't have to be, as far as I know, seen by anyone. Right. I am really obsessed with trying to figure out where Melissa was for the rest of the day. I'm convinced that that has to hold some kind of clue. And interestingly, while we know geofencing is no longer an option for police, like, about phone data and who was maybe, like, around her house, I don't think phone data is totally off the table. Agent Mata says that there was another company who offered to do something similar to geofencing for a fee of about$5 ,000. But the agency actually decided against it for now.

1:31:06Brit Prawat:They said it was partly over the cost, partly because they don't know how it would hold up in court if this case ever becomes criminal. And I know our listeners are like, show up. I even talk to the family. I'm like, listen, do we need to like fundraise? Do you guys need the funds? Like in my mind, even if you can't hold it up in court, like does it give you something when you have nothing?

1:31:25Ashley Flowers:Either an answer or like a non-answer, like to rule something out, right?

1:31:30Brit Prawat:But I actually think there's like a better option. So it sounds like what they were looking at, if it's close to geofencing, is about putting other phones in proximity to hers or like an area. I am more interested in where her phone was before it was wiped. And I know that that data is still available. You see, I got schooled recently. I was out in the desert hanging out with some cadaver dogs and their amazing handlers, as one does. And the woman who was organizing this search, her name is Candace Cooley. She is a badass. She was always a canine handler. But after her son Dylan was murdered in 2022, she took her work to the next level.

1:32:13Brit Prawat:And she created a nonprofit called Dylan's Legacy after that. And while her work is mostly around dog searches, when you're doing a dog search, you have to figure out where to start your search, your cadaver search, right? And she learned something that she is now on a mission to share with every law enforcement officer who will listen because it has the potential to be a huge unlock for investigating cases in the digital age. When it comes to phones, everyone's always thinking about cell phone providers, towers, pings. And yeah, that usually requires a warrant. But by the way, all of those apps on your phone, Facebook, Instagram, AccuWeather, you've been giving all of them permission to follow every step you take.

1:33:01Brit Prawat:If like cookies are accepted. Honestly, sometimes they're doing it anyways. And that data doesn't just live in your phone. The companies collect it, the companies store it, and in some cases they're sharing it or selling portions of it, which means that it's not private data, right? That means that investigators don't have to rely on cell towers only. They can go to these companies and even though like there's this common belief that you have to have a warrant to get that data from those companies, that is not true. So there are other ways to figure out where a phone has been. Now, all law enforcement knows about, like, getting a warrant.

1:33:40Brit Prawat:But Candace said that she was surprised at how many agencies she goes into who are unaware about using exigent circumstances, which means you contact these companies, claim exigent circumstances, and still get the data without a warrant. Because, remember, the data we're saying is not private. And so this, you can get all of the data points for someone's location. Where were they moving? And that's what Candace is trying to get across. So take Melissa's case, right? We know she had Facebook. Mata could request data from Meta, which, depending on her settings, might include location-related information from that day, which might clear up a lot.

1:34:20Ashley Flowers:But knowing this case, it also might throw a massive curveball into it.

1:34:27Brit Prawat:Honestly, it probably would throw a massive curveball, but at least we'd be one step closer to the truth. Right. Now, the thing is, another thing I need to make sure people hearing this mentioned, if this is a new concept to anyone, especially if you're in law enforcement or have a family who's missing, even if you get there, right? Like even if you do the exit circumstances, they give you the data. What you'll end up with is this massive pile of data points, likely in some kind of spreadsheet. Now, traditionally, that means that someone has to like sit down, analyze it, which can take time. I mean, we're still waiting on test results a year later to know what blood was in Melissa's house.

1:34:59Brit Prawat:I don't have high hopes that police just have like someone on deck to go through data. But good news, it is easier now than it's ever been. There is a platform called Badge Apps that lets investigators map phone data from carriers, from Google, Snapchat, and more, track phones in real time and manage the whole legal process in one place. So I would encourage anyone whose loved one vanished with their phone in the social media age to press their detective to look into this. maybe it will lead to answers. Maybe it will just lead to more questions. And that's kind of where I am with this whole case.

1:35:36Brit Prawat:Every time I think I have a handle on it, something shifts. A new detail that doesn't quite fit or a conspiracy theory sweeping the internet that of course has some kind of maybe tie or cast a shadow over this case, because why wouldn't it? It feels like the farther we get out from June 26, 2025, the further we are from any real answers. But I think real answers are there if we can get more real facts. We don't know if Melissa walked away from a life that had become unbearable. We don't know if someone made sure she couldn't come back. We don't even know why she was on Highway 518 on the afternoon of June 26, 2025.

1:36:19Brit Prawat:We just know that she was there and then she vanished. We spoke to a lot of people for this episode. Mark, Sierra, Melissa's parents and siblings, her stepdaughters, her niece Jasmine, some friends, and the two sides disagree on almost everything. But strip it all away. And everyone says some version of the same thing. They just want to find Melissa. And if she is out there, all they're asking is that she lets them know that she's okay. Because no matter which side they're on, that is the part that's eating them alive. The not knowing. So if anyone out there has information about what happened to Melissa Casillas, New Mexico State Police want to hear from you.

1:37:03Brit Prawat:There is a reward available for information, and you can reach them at 505-425-6771. And that goes for Melissa too, if she's out there.

1:37:31Brit Prawat:get the out of here i don't really understand all this

1:37:48Ashley Flowers:i don't even sort of understand it I'm like, oh my god. Is this related to Muslim as a CS? Yes. Yes. Of course it is. Oh no.

1:37:59Brit Prawat:You can find all the source material for this episode on our website, CrimeJunkie.com.

1:38:03Ashley Flowers:And you can follow us on Instagram at CrimeJunkiePodcast.

1:38:06Brit Prawat:We'll be back next week with a brand new episode.

1:38:24Brit Prawat:Crime Junkie is an Audio Chuck production. I think Chuck would approve.

1:38:33Ashley Flowers:Okay, Crime Junkies, you know I absolutely love a twist and a turn, especially when it comes to people who turn out to be someone they're not. That's why I have been obsessed with the podcast Chameleon. Every Thursday, host Josh Dean deep dives into a scam so bizarre, it will leave you wondering how did they get away with that it is truly one of my favorite podcasts right now and i've been listening for years i think you'll love it too listen to chameleon wherever you get your podcasts