The Fitbit Alibi

11 Mar 2026 · 47 min · 19 chapters

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In short

Notes on Podcast Episode: "The Fitbit Alibi" (48 Hours)

Episode Overview

  • Title: The Fitbit Alibi
  • Date Aired: July 19, 2025
  • Description: The episode explores the murder of Nicole Vander Heyden, who went missing after a night out with her boyfriend Doug Detrie. Her body was later found, and various digital tools, including a Fitbit, played crucial roles in both establishing alibis and incriminating potential suspects.

Key Figures

  • Nicole Vander Heyden: 31-year-old mother whose disappearance and subsequent murder are the focal points of the episode.
  • Doug Detrie: Nicole's boyfriend, initially a suspect who provided a Fitbit alibi.
  • George Stephen Birch: The eventual suspect and perpetrator identified through DNA evidence.

Timeline of Events

  • May 20, 2016: Nicole goes out with Doug and friends, later disappears.
  • May 21, 2016: Nicole's body is discovered in a field, showing signs of trauma.
  • Initial Investigation: Doug reports Nicole missing, leading to police questioning and a search of their home.
  • Late June 2016: Doug is cleared of suspicion as Fitbit data corroborates his claim of being asleep during the time of the murder.

Key Evidence and Investigative Techniques

  • Fitbit Data: Used to establish Doug's alibi, showing minimal movement consistent with sleep.
  • DNA Evidence: Collected from the crime scene; majority linked to an unidentified male.
  • Google Dashboard Data: Revealed Birch's movements on the night of the murder, indicating he was present at crucial locations.

Investigation Developments

  • Initial Suspicions: Doug was viewed as a suspect due to circumstantial evidence and domestic tensions.
  • Changes in Direction: Investigators focused on Birch after DNA from Nicole's clothing matched him.
  • Arrest of George Birch: After strong circumstantial evidence, including GPS data and historical behavior, he was charged with first-degree intentional homicide.

Trial Insights

  • Defense Strategy: Birch claimed Doug had threatened him and coerced him into disposing of Nicole’s body.
  • Prosecution Evidence: Highlighted the substantial forensic evidence and technology that contradicted Birch’s claims.
  • Verdict: After a brief deliberation, the jury found Birch guilty of first-degree intentional homicide.

Impact of Technology

  • Critical Role in Exoneration: The episode emphasizes how technology (Fitbit, Google data) can both identify perpetrators and clear innocent suspects.
  • Emphasis on Digital Forensics: The success of the case underscores the importance of integrating modern technology in criminal investigations.

Key Takeaways

  • Community Shock: The murder left a profound impact on the seemingly safe community of Green Bay, highlighting the unexpected nature of violent crime.
  • Family Impact: Nicole's family continues to feel the loss deeply, reflecting on her vibrant personality and the void left in their lives.
  • Closing Reflections: The episode not only discusses the crime but also touches on the emotional aftermath for the families involved and the community.

Conclusion The "Fitbit Alibi" episode illustrates the convergence of technology and traditional detective work in solving complex murder cases, showcasing both the investigative process and the emotional toll on those affected by crime. The case also sheds light on societal perceptions of safety, justice, and the transformative power of modern forensic methods in the judicial system.

Written by AI. May contain mistakes. Listen to the episode to check what was said.

Chapters

Tap a time to open that second in VO

Introduction to the Case of Nicole Vander Heiden

0:23 to 1:04

Explore the community of Green Bay and its traditions before a tragedy unfolds.

“However you sleep, the pod by Eight Sleep adapts to you.”

The Disappearance of Nicole Vander Heiden

1:04 to 1:46

Discover the events leading to Nicole's disappearance on May 20, 2016.

“Nobody would ever think that something like this would happen in our community.”

Investigation Begins: The Discovery of Nicole's Body

1:46 to 3:22

Learn about the initial police response and the discovery of Nicole's body.

“Doug and Nicole decided to go out that night.”

Suspicion Falls on Doug Dietry

3:22 to 4:08

Understand the mounting evidence and suspicions surrounding Doug Dietry.

“People are wondering, could he have done it?”

The Role of Technology in the Investigation

4:08 to 4:50

Examine how technology, particularly Doug's Fitbit, plays a crucial role in the case.

“There's lots of twists and turns to it, and it's hard to know who's telling the truth.”

A Night Out Turns Tragic: Nikki's Last Hours

4:50 to 7:22

Revisit the events leading up to Nikki's tragic disappearance during a night out.

“Kate Brickolet covers crime for the Daily Beast.”

The Aftermath of Nikki's Disappearance

7:22 to 10:12

Learn about the investigation into Nikki's disappearance and the evidence collected.

“We just found a human body laying in some weeds.”

Family's Grief and Ongoing Questions

14:33 to 14:48

Hear from Nicole's family as they cope with the loss and seek justice.

Nicole's Murder Investigation Begins

14:48 to 17:46

Explore the emotional turmoil of Nicole's family and the early stage of the investigation.

“Nicole's mother and her brother Brandon struggled to understand how anyone could murder their beloved Nikki.”

Uncovering the Mystery of George Birch

17:47 to 20:30

Follow the clues leading to George Birch and the significant evidence connected to him.

“Birch moved from Virginia to Green Bay on March 1, 2016, looking for a fresh start.”
Show all 19 chapters

The Arrest and Trial of George Birch

20:31 to 24:27

Watch as the investigation concludes with Birch's arrest and the trial begins.

“I mean, it's a huge piece of evidence, obviously.”

Doug Dietrich's Testimony and Fitbit Evidence

24:28 to 28:01

Examine Doug Dietrich's role in the trial and how Fitbit data plays a crucial part.

“on their very first interview, the day he reported Nicole missing.”

Doug's Defense and the Trial Dynamics

28:01 to 29:41

Explore the dynamics of Doug's defense and the implications on the jury's perception.

“Nicole also accused him of being abusive.”

Birch's Testimony: A Shocking Account

30:52 to 34:28

Uncover George Birch’s version of events during the trial, detailing his actions the night of the murder.

“It's day eight of the George Birch murder trial.”

Cross-Examination: Questioning Birch's Credibility

34:28 to 38:28

Witness the intense cross-examination of Birch, highlighting inconsistencies in his story.

“They have traveled more than a thousand miles to be here every day.”

Prosecution's Final Argument

38:28 to 41:00

Analyze the prosecution's strong counterarguments against Birch's claims.

“Does the state have any rebuttal witnesses?”

The Jury's Verdict and Its Impact

41:00 to 42:07

Reflect on the moment the jury delivers its verdict and the emotional aftermath.

“What was the feeling in the courtroom as the case went to the jury?”

The Aftermath of a Verdict

42:07 to 43:36

Learn about the emotional reactions and consequences following a guilty verdict.

“It is signed by our foreperson and dated this first day of March, 2018.”

Reflections on Loss and Memory

43:37 to 45:29

Explore the deeply personal reflections of a family grieving their loss.

“the judge speaks to George Birch before sentencing him, while Doug Dietry and his mother look on.”
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Transcript

Automatic transcript. May contain errors.

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0:46To most Wisconsinites, Green Bay is a magical place. It's where the Packers play. It's a fun town and everybody knows everybody. Drinking is part of the Wisconsin tradition. Green Bay is a great downtown pulse and I feel it's relatively safe. Nobody would ever think that something like this would happen in our community. Continuing coverage tonight of a death investigation in the village of Bellevue. When I had gotten the news, I just shook. I just shook. There is police activity in a field. I was a good friend of Nicole Vander Heiden's. She was my neighbor. We watched each other's kids. She just was a ball of fire.

1:37Nicole Vander Heiden was 31 years old. She was living with her boyfriend, Doug Dietry, and they had just had a baby together. It was Friday, May 20th of 2016. Doug and Nicole decided to go out that night. This was an opportunity for them to go out and have a great time. The night didn't end in a great time, it ended in a nightmare. Nikki walked off into the darkness that night. She just walked off, she vanished.

2:13Erin Moriarty:That was the last anyone saw of her. About where was she found? Right down this embankment. When we arrived on scene on this one, you kind of knew right away it was probably going to be different. At the scene, that was the most apparent thing, is the trauma to the left side of the face. When you came here, there was no way to identify her. You had no idea who she was? Not right away, no. Doug Dietry. He woke up in the morning. Eventually, later that afternoon, he had called the Sheriff's Officer 911 to report that his girlfriend did not come home from the night before. I'm here for a missing persons report?

2:53Erin Moriarty:We sent some officers over to her residence to take the missing persons report. So this is not normal behavior for her? Not at all. And this is where Nicole was living? Correct. And you believe that she was killed here? Correct. Across the street, in the roadway, a large quantity of blood that was determined to be Nicole's. Everything's pointing to Doug Dietrich's. Yeah, so then Monday night... Right now I'm going to be taking you into custody. We felt we had probable cause to arrest Doug Dietry. I'm a decent guy. Okay, I'm a decent guy too. I get that, I'm sure you are. I think people were shocked.

3:30People are wondering, could he have done it? This is so cool. Did Doug do it? His alibi was his Fitbit that he had been wearing all night. And that supposedly proved that he was asleep at the time of her murder. The technology is really what drew me to this case. We had this evidence we wanted to check out, have tested at the lab. The DNA evidence starts to come back. And it belonged to an unidentified male.

4:01Erin Moriarty:Subject outside on the porch. That was our goal, to figure out who is this mystery person. It's definitely a whodunit. There's lots of twists and turns to it, and it's hard to know who's telling the truth. Green Bay is supposed to be a really safe place. You know, mothers don't go missing and police don't find their bodies in farm fields.

4:31February 2018. Friends and family of Nicole Vander Heiden gather in a packed Brown County courtroom seeking justice for her brutal, senseless murder two years earlier. What happens in this case could definitely come down to the technology. Kate Brickolet covers crime for the Daily Beast. Who would do this? Who would do this to Nikki? I was just, it's not real. You know, that can't be. Tiffany Hoffman was a close friend of Nicole's, who everyone called Nikki. They had been friends for years and shared a love of the outdoors. What's the first thing that comes to mind when you think of her? Light, spirit, a verve and a zest and zeal.

5:20She was close with her family and loved her children. Nikki was a mom to three, Michaela and Tyler from a previous marriage, and six-month-old Dylan, whose father was her boyfriend, Doug Dietry. The two had met in January 2015 and soon moved in together. She was really, really happy. When she talked to me, she said they both were excited. Yeah, that they both were excited to have a baby. On the night of Friday, May 20, 2016, Nikki and Doug make last-minute plans to get a babysitter and join friends at a bar called The Watering Hole to see a Steel Panther concert.

6:04I think Nikki was really looking to let loose and have a good time. As the concert is ending, Nikki decides to go with Doug's friends to another bar called the Sardine Can. And leave him. Doug agreed that he would finish his conversation he was having and find her at the next bar.

6:28As seen on this Sardine Can security camera, Nikki appears to be having a great time talking and dancing with friends. But as the night wears on and Doug still hadn't shown up here at the sardine can, she gets upset and begins sending him angry texts. They were scorching, and they were all but accusing him of infidelity. Sometime after 11.30 p.m., Nicky tries calling Doug, but he doesn't answer. So another friend calls Doug and he answers. And this enrages Nikki. And so she gets up and leaves the bar. One of Doug's friends runs after Nicole, begging her to come back to the bar, but she refuses.

7:20Instead, Nicole walks down this street, turns left, and vanishes into the night. When Doug finds out that Nikki has left, he and his friend Greg drive around looking for When they can't find her, they go into the sardine can where Doug, seen here in long pants, has more to drink before the two of them head out.

7:47We just found a human body laying in some weeds. Early the next afternoon, farmer Richard Vande Hei makes a gruesome discovery. Over this hill right over here. Yep. At first I thought it was a deer because of the rust color in her hair. Then I realized it was a young lady. She was naked other than socks that were on her feet and a pink wristband. Other than we had no form of identification. Brown County Sheriff Sergeant Rick Lobnau is among the first to respond to the scene. There was a lot of blood.

8:23Erin Moriarty:There was obvious injury, trauma on the side of her face. Obviously the first step of the investigation is to identify who the person is. Sergeant Brian Slinger is the lead detective on the case. That in and of itself was difficult due to the severity of the injuries. Brown County Public Safety, this is Therese. Deputies get their first lead at 4.30 that afternoon when Doug Dietry calls 911 to report Nikki is missing. And her date of birth? March 29, 1985. Her description matched what we had found in the field as far as age, approximate size, hair color. Slinger sends officers with a hidden camera to Dietrich's home, which is just a little over three miles away from where the body has been found.

9:15So you left the sardine cannon for another 30 to 40 minutes? Yeah, because we didn't get back here. I didn't even know what time it was. It was late. 2.30. Doug tells deputies that after Greg dropped him off, he fell asleep around 3 a.m. And except for getting up to check on the baby, he was asleep until after 6.

9:37Erin Moriarty:Did you do anything to cause her to go missing? No, not at all. That night, Doug's parents watch baby Dylan while Doug is further questioned at the station. It's here they tell him that Nicky has been murdered. Kitty, please don't.

10:01As Dietrich is being questioned, detectives get a warrant to search his and Nicky's home. They find blood on the floor of the garage and in Nicky's car.

10:12Erin Moriarty:On the headboard, on the side, and then in the backseat area. They also discover a pair of Air Jordans in the garage that appear to match the shoe print found on Nikki's back and seem to have blood smudges on the bottom. For us, it's adding up. OK, this this is our guy. Just before dawn, an off-duty patrolman reports items scattered along a highway ramp less than two miles from where Nikki's body has been found. There was a purse as well as her cell phone and items that she was wearing that night. And there are more damning clues found in a neighbor's yard who lives across the street from Doug and Nikki.

10:54And what was found here?

10:55Erin Moriarty:A large quantity of blood that was determined to be Nicole's, as well as some clumps of blonde hair. And then there was also a cord, which I would describe as like a phone charging cord. This was a huge discovery. Now they had a murder scene, and it was 118 feet from Dietrich's front door. More than 70 pieces of evidence are sent to the state crime lab. Statements. Now, detectives had a theory about how Nikki had died. There was some sort of argument between her and Doug, maybe when she got home. Somehow it ended up out in the street. Right now I'm going to be taking you into custody. Sheriff deputies are recording when they arrest Doug Dietry, who quickly becomes emotional.

11:42Dietry isn't charged with murder, but deputies hold him on a$1 million bond while they wait for DNA results.

11:51Erin Moriarty:Is there DNA on the bottom of the shoe? Is that blood on the bottom of the shoe? 18 days later, investigators are stunned. Crime lab tests show the blood in the car isn't Nikki's. The blood in the garage isn't human. And tests on the shoe stains are inconclusive, but appear not to be blood at all. We had nothing on Doug, so he was released. What's more, on the night Nicole disappeared, Doug just happened to be wearing a Fitbit, a personal tracking device. It goes on your wrist just like this, like a watch, and it tracks your activities, the steps you take, your heart rate, even your sleeping patterns.

12:37When the Fitbit data stored in Doug's phone is examined, it corroborates his story.

12:44Erin Moriarty:He had a few footsteps throughout the night, getting up to go to the bathroom, checking on the baby, whatever. His story that he told us was absolutely 100 % true. So, who killed Nicole Vanderheiden? Will more high-tech forensics blow this case wide open?

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14:48Nicole's mother and her brother Brandon struggled to understand how anyone could murder their beloved Nikki. It was a horrendous thing and it's just so hard to let that out of your heart. What do you miss the most? I'm waiting for her to come walking through my door again, you know. I miss her the most. It was her. I have a picture of me and her when we were younger. Just looked at it every night. That's all the time. Remember, the evidence appears to clear Doug Dietry. So in June of 2016, his focus turns to raising his son Dylan. while Nicole's two older children live with their father.

15:47The case torments Sergeants Brian Slinger and Richard Lopnow. They are back at square one with no idea who did this. Two of you have this horrific murder on your hands. What are you feeling at that moment?

16:04Erin Moriarty:We needed to figure out how Nicole got home. We pulled video cameras from every single bridge in the city of Green Bay because in order for her to walk home, she would have had to cross a bridge. They re-interview witnesses, re-examine phone logs. It was getting to the point where, you know, we had looked at each other and said, well, I really hope this isn't a cold case. Their first big break comes over the course of the summer. DNA results trickle in, and they are tantalizing. The investigators learn that many of the samples taken from Nicole's clothing and from the neighbor's yard have DNA from an unidentified man on dozens of samples, the same partial profile, but never enough for a positive ID.

16:53Erin Moriarty:We had this one consistent mystery guy, I guess you'd call it, and our job was to try and find out who that was. It was just a very confusing time. Nobody knew who would have done this to Nikki. And then finally, that August, almost three months after Nicole disappeared, the investigators get a call from the crime lab. One of the socks Nicole had been wearing has enough DNA to run through the national database. And they get a name. The excitement was amazing. The DNA belongs to a man named George Stephen Birch. I was a hit over the state of Virginia. Virginia? Yeah, Virginia. So I was like, okay, who is George Birch, and why is he in Green Bay, Wisconsin, of all places?

17:42Yes, we have a name now, but now we need to start digging on who this person is. Birch moved from Virginia to Green Bay on March 1, 2016, looking for a fresh start. A longtime friend gave him a place to stay and helped him find a job. He also loaned him a car, a red Chevy Blazer. That red Blazer would provide crucial evidence. It had been involved in a hit-and-run accident and destroyed in a fire a few weeks after Nicole's murder. So when detectives run Birch's name through the local police database, up pops the accident report, which leads them to an address for George Birch.

18:26Erin Moriarty:Swear to God, I drive by the first time, who's standing out in front of the house smoking a cigarette? George Birch. My hair stood up on the back of my neck. I had goosebumps. It was like, oh my God, there's our guy.

18:42They videotape his movements and keep their suspicions to themselves. And they learn that when Birch was questioned about the hit, and run, he handed over his cell phone and on it, a high-tech treasure trove. He gave them consent to search his phone. They extracted the entire thing.

19:02Erin Moriarty:So I requested a copy of that. It's an Android phone that had a Gmail account associated with it. We were recently made aware of this Google dashboard data that could potentially give us GPS data. You may not know this, but chances are, if you have an Android device with a Google account, your exact location gathered via cell phone towers, local Wi-Fi hotspots, and GPS locators is constantly tracked and stored within Google's servers. The information can be viewed with a tool called Google Dashboard. The investigators obtain a warrant to view Birch's Google Dashboard. What they get back is astonishing.

19:45Birch started the night that Nicole disappeared at Richard Cranium's, a bar a half mile from the sardine can. The data tracks Birch at 2.30 a.m., leaving Richard Cranium's and driving to Nicole's house, the crime scene, where he stayed for nearly an hour. It was very obvious that here's our guy. He is next tracked at the field where Nicole's body was found. Then near the off-ramp where her bloody clothes were discarded. And then at 4.22 a.m. back at his home. When you saw that he was right there, what was your reaction? I mean, it's a huge piece of evidence, obviously. Finally, enough for an arrest.

20:38Captured on police dashboard cameras.

20:41Erin Moriarty:We sent one guy out to the house a little bit earlier to get eyes on, and he called me. And he's like, oh my God, he's on the move. We got to go now. We all had to rally up, get in our cars and drive. On a drizzly September day, four months after Nicole's murder, George Birch is arrested and charged with first-degree intentional homicide. The reason you're here is in reference to a homicide investigation into Nicole Vanderheiden. So if I read Jim Miranda rights, you don't want to talk to me, so I prefer a lawyer. Okay. Nicole's former brother-in-law, Sean Vanderheiden, says the news came as a big surprise.

21:25I had no clue who he was or where this guy came from, but I was just happy to hear that they had someone.

21:37Nicole's family and friends have a new anguish, waiting for a trial. In March 2017, on what would have been Nicole's 32nd birthday, they came together on Lake Michigan to release lanterns in her honor. It was so cold, so cold, but her memory warmed us. We all went out on that dock, on that pier, and lit our lanterns and sent them off until you know, her memory. Why lit lanterns? Why was that used to honor her? A light, her light. She was a light for so many in this world. All right. Nearly one year later, on February 19, 2018, George Birch goes on trial for Nicole's murder. The prosecution has a strong case.

22:34Mr. Birch must be held accountable. But according to the defense, prosecutors have the wrong man. You will know that Douglas Dietry, Nicole's boyfriend, murdered Nicole.

Read the full transcript

23:01For Nicole Vander Heiden's family, every day of George Birch's murder trial is agony. Vicki, how did you get yourself to go every day to that courtroom? I don't know. God, we must have just taken our hands and let us there because, I mean, we wanted answers. Friends say it's agonizing for Doug Dietrich, too, especially once he learns that George Birch's defense team is planning to blame Nicole's murder on him. He was nervous, and I would be, too. You know, you were accused of a murder, and it's so many things going through your head. And now Doug Dietrich's testimony is critical to the prosecution.

23:46Kind of interesting that the man who you first thought might have killed his girlfriend is going to be one of the most important witnesses at this trial, right?

23:56Erin Moriarty:Right. He will be very important. Just as important would be the technology evidence, data collected from both Doug Dietrich's Fitbit and George Birch's phone. Prosecutors say that Dietrich's Fitbit shows he couldn't be the killer. The autopsy results, the DNA identification, the Google dashboard data, the records from Fitbit, that is the evidence that will drive you. You will follow that evidence and you will find the truth. Doug's Fitbit is seen here in this video captured by officers on their very first interview, the day he reported Nicole missing. Prosecutors say downloaded data showed Doug barely moved in the hours they believed Nicole was killed and left in the field.

24:46And is that based on the data that you obtained directly from Fitbit? Yes, it is. Everything that I could view directly on the device and lined up with what had previously been stated. Did you ever during this trial or have you thought much about it that how lucky it was that Doug happened to be wearing a Fitbit that night and the next morning? Yeah, that was huge in this case, I think, right there. That pretty much said he wasn't there when this all happened. On day three of the trial, Dietrich takes the stand. Do you swear to tell the truth, the whole truth? Prosecutors aim to present him as a normal guy, not the best boyfriend maybe, but an unlikely killer.

25:34Can you tell us about your family? My mother, my father, my amazing little son, Dylan. Deidre tells the jurors he and Nikki dreamed of getting married one day. And early on in the night she disappeared, they were having fun.

25:53Nikki didn't usually drink, he says, but that night they were both partying hard. What was the pace she was drinking that night? Pretty quickly. I think she had like two down and I was still on my first one. Once they got separated and Nikki went ahead to the sardine can with friends, Doug continued drinking and smoked some marijuana. Before long, Nikki sent him her first angry text, wondering where he was. Nikki's text got angrier, and she accused him of being with other women. At any point in response to those messages, did you get upset with Nikki? No, I didn't. The texts kept coming. Doug said he offered to pick her up, but her phone died.

26:45Were you concerned that Nikki was missing at that point in time? I was not concerned that she was missing. I was kind of concerned, like, why is she upset? Did you have absolutely any involvement in Nikki's disappearance or death? No, I did not. Under cross-examination, George Birch's attorney, Lee Shukert, pushed Doug on whether things at home were really as good as he said they were. Birch's lawyer shows jurors a text Doug sent to his mom 10 days before Nikki died, saying, I'm very seriously thinking about telling Nikki and the kids they have to move. So in May of 2016, though, there were times where you were seriously considering breaking up with Nikki and the kids.

27:31I never really, like, seriously thought about it like it made plans or anything like that. It was just a lie to your mom. What the jury would never hear is that several of Deidre's past girlfriends accused him of being jealous, abusive, and controlling. One girlfriend claimed that he put a tracking device on her phone so he'd always know where she was. In her barrage of angry texts to Doug that night, Nicole also accused him of being abusive. Did you hurt Nikki that night? Uh, do you mean physically or what? I, no, I mean... Did you physically beat her in the past? No, I never physically beat Nikki.

28:18Had you cheated on her in the past? No, I have not. You know, Doug is not an angel. Isn't that going to be a problem in this jury?

28:28Erin Moriarty:Doug Dietrich is not on trial. George Birch is on trial. Defense attorneys asked the babysitter, who took care of Dylan that night, to recount an odd conversation she had with Dietrich the day after Nicole died. I just asked, what happened? you know, like, what happened? And he just replied, I don't know. She hit her head, and then she just wanted to walk home. So specifically, when you had asked him what happened, he said, I don't know. She hit her head, correct? It came out of his mouth, that comment. Would the questions raised about Doug make jurors wonder if the right man was on trial? And would they buy George Burgess' stunning version of what happened that night?

29:11It was fairly dark. I saw someone standing behind me. Who was it? It was that bee tree.

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31:00It's day eight of the George Birch murder trial.

31:04Erin Moriarty:Judge, at this time the defense calls George Stephen Birch to the stand. And with it comes the testimony everyone has been waiting to hear. George Birch's version of what happened the night Nicole Vander Heiden was murdered. Let's start from the beginning. Okay. Prompted by his attorney, Birch tells jurors he's a hardworking family man with an easygoing nickname. Most people call me big country. Public defender Scott Stebbins takes Birch back to the night of the murder. Burch claims he ran into Nicole at the local bar called Richard Craniums. How were you acting towards her? I was flirting. And how was she acting towards you?

31:48Somewhat the same, pretty much. Flirting back and forth with each other. According to Burch, they continued flirting until closing time, around 2.30. And just as the Google dashboard evidence showed, he drove Nicole the eight miles to her house and pulled up to the curb across the street. We sat there and talked for a few minutes.

32:11Erin Moriarty:Okay, what happened after that? Started just pulling around, messing around a little bit, started kissing. Birch then detailed what he says was consensual sex. Nicole was in the back seat and Birch, too big to fit in the back seat with her, stood just outside the rear passenger door. I was standing outside the blazer. Nikki's family and friends had to sit there silently and listen. Anyone who knew Nicole knew that there was nothing that she would ever do. That was not her. But it's what Burch says happened to him while he says he was having sex that was perhaps the most difficult to accept. He says he was knocked out.

32:57The next thing that I remember, apart from us having intercourse, was literally waking up on the ground outside the truck. Did you hear anything? The first thing I heard was, don't even think about it. Bert said he turned and saw someone standing behind him holding a gun. At that point, did you know who that individual was? Never seen him before in my life. Do you know who that individual is now? Now I do. Who was it? It was Doug Dietrich. Birch says he saw Nicole laying on the pavement. I didn't know if she was alive. There was a lot of blood. The 6 '7", 250-pound Birch said Dietrich told him to put Nicole's body in the blazer and then drive to the field.

33:50Dietrich, he said, ordered him at gunpoint to carry Nicole's body down an embankment. That's when I turned and with everything I had, I lunged at him and pushed him as hard as I possibly could. Birch said he ran back to the blazer and headed for home, throwing Nicole's clothes out the window on the way. The next day, he met up with friends and went fishing. You didn't call 911? No, sir. But he didn't tell anyone else either. You don't tell them people. People get killed all the time where I'm from for that. As Birch told his story, two women were in the courtroom listening to every word. They have traveled more than a thousand miles to be here every day.

34:39We just wanted him to see our face every day and know that we haven't forgotten what he did, and we've never forgotten Joey. Joey is Joey White. It's Joey and Audrey. In 1997, he was murdered in Newport News, Virginia. The man accused of killing him, neighborhood rival George Birch. But this jury will never hear about it. He was out on bond when he killed Joey. Shana Stowe was Joey White's fiancee and the mother of his child. I'm 16. Joey's 22 there. He was my first love. He was it. Carla Rhodes is Joey's sister. I miss him a lot. Birch testified at that trial, too. He looked at us, laughed at us the whole time, smirked.

35:33And what happened? Not guilty. It was shocking when they said not guilty. Neither was surprised that Birch had been accused of another murder. I'm not shocked at all. I mean, I wouldn't be surprised if he's killed other people. Look what he did. I mean, it's brutal. When it was finally District Attorney David Lasse's turn to cross-examine Burch, he had one thing in mind. To show how ridiculous his story was. And he says he had plenty to work with, like Burch's claim that Nicole would have agreed to have sex in the car. So, Nicole would rather have sex with you in front of her neighbor's home, with your butt hanging out the door of the car, than ask the babysitter to go home?

36:20Sir, I don't know. I wasn't the one making decisions. And if Birch was hit hard enough to knock him out, why didn't anyone see bumps or bruises on his head when he went fishing the next day? I'm 6 '7", so it's hard for someone to see the top of my head. And why would Dietrich murder Nicole and let Birch get away? So rather than just beating you or killing you in the middle of the street, he decided to enlist you a total stranger to help him dispose of the body of his girlfriend. I don't know what his plans were. At one point, Lise pushes Birch on a possible motive. What really happened was you drove Nicole home, fully expecting that you were going to have sex, right?

37:11I was hoping that we would. And when you get there and it becomes clear that Nikki isn't going to have sex with you, When she attempts to go into her house and leave your vehicle, that's when your mood changes, right? No, sir. That's when things get aggressive, don't they? Not at all. That's when you grab that cord and strangle her, don't you? No, sir, not at all. That's when Nikki gets slammed on the ground repeatedly when she's trying to run toward her house. None of that is true. And Burch loses his cool when Lasse presses him on an inconsistency in his story. So clear this up for me. You're backing down the embankment with Nicole's body in a fireman's carry position, right?

37:52No. What are you doing? I told you before, and I will say it one more time for you, sir. I was carrying her over to this area. I think there was a big turn when you saw him lose his temper. I think we both said, well, there's the real Steve Birch coming out. Not George, not big country. This is how we know him. You're assaulted. You're held at gunpoint. you carried the mangled body of a woman to her final resting place and the next day you're going fishing with your buddy with a smile on your face and not a care in the world. I wouldn't say not a care in the world. That definitely would not be something I would say.

38:30Who will the jury believe? No further questions.

38:50Morning, everyone. Be seated. Does the state have any rebuttal witnesses? The prosecution got one last chance to present witnesses to rebut the story George Birch told the jury. During George Birch's testimony, he specifically said, if I recall, that they were having sex. Her pants were off already at that point. So during the rebuttal, we brought those pants to enter into evidence and make sure they were viewed. If she had been disrobed in her car, how do those clothes get not just bloody, but dirty and hairy? Those clothes are filthy, and they're demonstrative of being worn during a struggle.

39:30Carefully and respectfully, Sergeants Brian Slinger and Rick Glopnow unwrapped and displayed the pants that Nicole wore the night she died, found blood-soaked and muddy on the highway.

39:43Erin Moriarty:It goes to George's credibility, which is zero, that this was not a consensual act. She fought, escaped the vehicle. He bludgeoned her, strangled her, and with her clothes on, and then transported her body to the scene. His story was a lie. He disrobed her at the scene and forgot her socks. And then the final arguments. Go right ahead. Thank you. The prosecution reminded jurors of the weight of evidence against George Birch. Whose DNA is on her sock? Who's with Nikki at the four key areas of Brown County? Their explanation is ridiculous. It's insulting to your intelligence. While the defense hoped to plant doubt.

40:27Justice for Nicole is not going to be delivered by a wrongful conviction of George Birch. Doug Dietrich had the motive, the opportunity, and the connection to this crime. The man that met this woman in a bar and admitted, admitted by his own account to dumping her body in that field looks like this the next day. Who does that? Ladies and gentlemen, the bailiffs will escort you to the jury room. Good luck. What was the feeling in the courtroom as the case went to the jury? It was very tense.

41:09And I was surprised that I think 45 minutes later, I mean, not even an hour later, the jury had a question. The jury asked to see the bloody wire used to strangle Nicole, as well as cords found in Doug Dietrich's garage, to see if they were possibly a match.

41:29Erin Moriarty:You know, the fact that they're thinking about that is telling me, okay, are they actually believing George Birch's story here? It really made me wonder where this was going to go. After a nine-day trial and more than 50 witnesses, the jury took just over three hours to reach a verdict. I just had this horrible feeling I was coming back not guilty. It just was really hard. I could not breathe. And you could feel everybody was, like, shaking. We, the jury, find the defendant, George Stephen Birch, guilty of first-degree intentional homicide, is charged in the information. It is signed by our foreperson and dated this first day of March, 2018.

42:12Everybody was just like, oh my God, thank God. He was guilty. Thank God. What sticks out in my mind was the gasp, hearing that from the family and knowing the relief that they had at that moment. That'll stick with me. In a good way, right? Absolutely. I know Joey was there for this. It's just 20 years later. It was his 20-year anniversary of his death in October. It's just... Trying to get upset. Could you see Doug Dietry? Doug Dietry, I think, was relieved. Doug Dietry was holding his mother. Doug wasn't even on trial in this case, but he was finally free of any suspicion. Doug, what's your reaction?

42:58So what you found from this case is that this technology can do more than connect someone to a crime. It can actually exonerate a person.

43:07Erin Moriarty:Absolutely, yeah. I feel bad that he sat in jail for 18, 19 days. I mean, technology is very important, and our goal is to exonerate people just as it is to find them guilty. If we didn't have these Google data locations on George's phone, if we didn't have the Fitbit, Would it be Doug Dietry sitting in prison as opposed to George Birch?

43:36Back in court two months after the verdict, the judge speaks to George Birch before sentencing him, while Doug Dietry and his mother look on. This family is destroyed. It's ruined. It'll never be like this again. In a state with no death penalty, the sentence is as harsh as possible. Life without parole. This is a crime that I believe merit the death penalty, and for that you have to die in prison. It is what the families wanted, and yet this is no time for celebration. To Vicki, to the Dietrich family, prayers and support of this community are with you. Good luck and God bless. This court is in recess.

44:30The only comfort for Nicole's family is that George Birch can never destroy lives again. When they convicted George of being guilty, it was a feeling of happiness, but yet still, somewhat of a realization that she's actually gone now. It was hard. What's the first thing that comes to mind when you think of your daughter? Her big smile. Her big, gorgeous smile. She just radiates. She just does. She's always happy. What do you all tell her children? Nicole is looking over them all the time in that she loves them, and she'll see them again. And every night, I know Tyler and Michaela always say a prayer and talk to their mom and say goodnight.

45:15We gained an angel. We lost a breath of fresh air. The memory lives on through the stories we share, things we never forget. And she's okay. She's okay.

45:29Erin Moriarty:I love you. I should have passion for life, for living. She had good morals. What more can a mom ask for?

45:44In 2021, the Wisconsin Supreme Court upheld George Birch's conviction.

46:08blackmails their own mates. We're a crime family.

46:11Erin Moriarty:Don't be silly. We're just a bit complicated, like the Beckons. Can you keep a secret? New series, now streaming on Paramount+. I'm back. I'm really back. School Spirits returns. Why am I here? I'm not dead, right? This place is an absolute death trap. We need to get out of here. Now. School Spirits, new season now streaming, only on Paramount+.

From the publisher

In 2016, Nicole Vander Heyden went out with her boyfriend Doug Detrie and friends but never made it home. A day later, she was found beaten and strangled in a field. Wisconsin police used a host of digital tools to try to solve her murder. One device created an alibi. But other tools were used to incriminate her killer. “48 Hours" Correspondent Erin Moriarty reports.

This classic "48 Hours" episode last aired on 7/19/2025. Watch all-new episodes of “48 Hours” on Saturdays and stream on demand on Paramount+.

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