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You survived the Miami weekend, nailed the speech, and maxed out your credit card in the name of friendship. Now you've got one hangover, four pastel dresses, and zero reasons to wear them again. Sell them on, Depop. Just snap a few photos, and we'll take care of the rest. And you at least get some of your dignity money back. Someone on Depop wants what you've got. Start selling now, Depop. Where taste recognizes taste. It was three weeks after his wife's murder that Sandy Preer told investigators he was no longer going to talk to them.
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My. My attorney said not to answer any more questions. And again, I don't mean to show any disrespect to you guys at all.
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Once Sandy said he was done talking, the detectives seemed to realize this could be their last chance to get what they wanted from him. They started pressing him to confess.
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You gotta do the right thing, man. You got to. I think I am. In fact, I know I am. And I'll just tell you one thing. You got the wrong guy.
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Sandy Preer was the wrong guy. But that only became clear much, much later, more than 23 years after Leslie Pryor's mur murder, when police arrested someone else. New evidence had led police to this other man, and ultimately, that evidence cleared Sandy prey of any wrongdoing. But until that arrest in 2024, Sandy remained, to a lot of people, the likely culprit. Here's his daughter, Lauren Preer.
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My father and my mom's family used to be so close, but my mom's family believed he killed her. Not all of them. Some of my uncles and some of my cousins were like, there's no way. I mean, I think my dad died of a broken heart.
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Sandy Prear did not live to see his name cleared. In 2017, he died suddenly after an illness. Lauren's friend Lisa says the news was yet another gut punch for Lauren.
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It came out of the blue. I mean, she just got a call one day from the ICU that her dad was there, and it was just so unbelievably traumatic for her, especially after losing her mom. You know, she was an only child, so I think then having her dad ripped away from her and it being so unexpected, it was just such a huge blow.
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To this day, Lauren describes a sense of disbelief about what she and her dad went through.
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It's just unreal that it happened to our family. You never think anything that's like that would ever happen. And we had to live with that until 2017. And he still didn't know but all
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those years, as the years passed, Lauren says she kept prodding police for updates in her mother's case.
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I never gave up. I never gave up. I called all the time. I knew someone knew something, you know what I mean? So I just didn't give up. And finally one day my phone rang and. And I didn't even answer because I didn't know the phone number. And then I got a message saying were calling about your mom, Leslie Prier. And I said what?
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The phone call was from a detective with the Montgomery County Cold Case Unit. A new set of detectives had picked up the investigation into Leslie's death. These detectives would reexamine the 20 year old evidence in Leslie's case file. And with the help of new technology, they would finally crack the case wide open. From ABC Audio in 2020.
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Einstein.
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Stephanie Ramos this is Blood and Water. Episode 4 Family Tree. The office of the Montgomery County Cold Case Unit is in the basement underneath police headquarters. The room is windowless. Glamorous it is not. But it's the sort of hidden away place where no one bothers you, where a detective can disappear into their work. The office is crammed with heavy duty shelves. On these shelves sit dozens of boxes
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with any cold case. We're going to take the box out and it's usually a big dusty box with lots of files. It could be several boxes and you just kind of go through each file one at a time.
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This is Detective Allison dupois. Detective Dupois spends her days here among the boxes that represent Montgomery County's unsolved crimes. And of course, behind every unsolved homicide or sexual assault or kidnapping, there are the victims and loved ones who never got answers.
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When you're in the cold case unit, you get to reconnect with families who have otherwise probably have feeling like they've been forgotten by the police department. And we get to make contact again and kind of try to give them maybe some hope and just let them that we're thinking about this case again and taking a fresh look at it. Leslie Purr's murder has been open for over 20 years. When I got to the Cold Case unit, it was one of many boxes that are sitting on our shelves. And when Tara joined our unit, she just picked right up on it.
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Tara is Alison's partner, Detective Tara Augustin. Over her 20 year career in the police department, she had long hoped to join the Cold case unit.
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These are all major crimes. They're either homicides or rapes. And I like the challenge of trying to look at everything with fresh eyes and not take the same viewpoints that the previous investigators had. And when it's successful, it's a huge satisfaction that you're able to do something for the families and give closure.
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Back. In 2001, detectives Augustine and Dupois were college students living in and around D.C.
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it's funny because she and I didn't know each other then, but we also used to go, like, hang out with friends in all the same places in Chevy Chase. And we may have even passed crossed paths with Lauren at some point in our lives and not realized it because we were all in the same area at the same time, but didn't know each other.
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Did the case appeal to you more because the areas that were mentioned in the case were so familiar to you?
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It definitely did. It made me, I guess, have more of a connection to it.
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As the two detectives began working on the case, they got to know Lauren Preer. Lauren, who was 23 when her mother was killed, was now in her mid-40s. Her mother's murder and the mystery of what really happened that day had hung over Lauren for almost half her lifetime.
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It was very, very emotional for Lauren. I mean, you could just see it on her face and in her demeanor that she was just so grateful that somebody was looking at this and thinking about her mom again. And really she wanted to clear her dad's name. That was really important to her to let everybody know that her dad didn't do this.
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And soon these detectives would find the evidence to prove just that.
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Last summer, I spent some time with detectives Augustine and dupois. We went through some of the materials in Leslie Prier's case file. This evidence, collected two decades earlier was their starting place. We spread everything out across a big table. It was a big mess of photos, documents, pieces of a puzzle. The most difficult to look at were the crime scene photos taken inside the prayers home. So this here, this is the foyer of the house?
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Yes. This is the front door right here.
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So this is what Sandy and Brett Reedy would have seen when they came into the house.
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There was blood throughout the pre home, including some crucial spots in and around the kitchen.
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So this is the back door in the kitchen. And this is a drop of blood that was smeared. And there's a doorway right here that separates the dining room from the kitchen. And on that doorway, there's another drop of blood that was found.
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These drops of blood contained that unknown male DNA, the DNA that was not Sandy's. Authorities learned of this other DNA a few months after Leslie's killing. It was significant because it suggested that someone else had been in the house when Leslie was killed. And yet, even after the discovery of the unknown male DNA, investigators back in 2001 still believed that Sandy Pryor remained a viable suspect. Some 20 years later, detectives Augustine and Dupoy examined the evidence collected by the earlier detectives, and they came to a different conclusion. One detail police had noted in the original investigation was Sandy's demeanor at the crime scene.
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Police officers will go and they'll draw their weapons to search a house. And Sandy made a joke about, oh, you know, they're really taking this seriously.
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The exact quote in the police report was, you guys mean business. There's blood at the scene, his wife is missing, and he makes a joke.
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Yeah.
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Well, how did that land with you when you read that?
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You know, these kinds of circumstances, you don't know how you're gonna deal with it. Some people make jokes. Some people might be hysterical. Some people might not take it seriously at all at first. And some people take it very seriously. So I think you have different. Different ways of dealing with this stuff. But certainly that did not help Sandy's case.
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Another thing that didn't help Sandy's case was that he failed the polygraph test. But as detective Augustin points out, lie detector tests aren't exactly infallible.
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Polygraphs are tricky. They're not admissible in court. You know, they're an indicator that the person is having a response in their body, a physical response to whatever questions are being asked.
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Detective Augustine says Sandy took that polygraph shortly after detectives told him that Leslie's death was considered a homicide. She says Sandy understood immediately that was bad news for him.
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This is the first time he realizes that. And he even says to them, I know where this is going. He knows in his mind that they suspect that he's the killer, and he volunteers to take a polygraph. So his stress level is pretty high already. He goes right from this interaction with the detectives, follows them, and goes to the police station and takes a polygraph immediately after. I can see how he would have failed because it's a very stressful situation. The police think that he killed his wife, and he didn't.
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Detectives Augustine and dupoy know today that Sandy prayer did not kill his wife. So they also know that certain pieces of evidence, the failed polygraph, the odd jokes aren't what they first seemed. This is part of what makes police work so difficult. Investigators not only have to uncover evidence, but they have to decide what that evidence actually means, if it means anything at all. Still, given the prolonged and ultimately incorrect focus on Sandy, I had to ask detectives Augustine and dupois,
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did investigators focus
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too closely on Sandy Preyer? Did that focus distract them from finding the actual killer.
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I think at the time, especially before the presence of the unknown DNA was available to them, he was the prime suspect. And I think there was good reason for them to focus on him. Once the presence of the unknown DNA was there, it was almost as if they were trying to find a reason why Sandy was acting so suspiciously. Because a lot of his movements, a lot of his reactions, the failed polygraph, they all were mounting up to probable cause.
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And had it not been for that unidentified male DNA under her fingernails and in the crime scene, he probably would have been charged
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instead. No one was charged in the death of Leslie Preyer for the next 20 plus years. And over those two decades, there were few promising leads. That is until detectives took that unknown DNA and and began trying to find its family tree.
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Imagine you've been charged with a crime and the only witness pointing the finger at you isn't even human.
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I remember thinking, are you serious?
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Serious?
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What is this thing?
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It's something artificial created by a mysterious Canadian and it's coming for all of us. A life defining technology. Crime as we know it will never be the same. I'm like, oh my God, he's lying. From CBC's Uncover the Expert Witness, available now on CBC Listen or wherever you get your podcasts.
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DNA evidence can be very useful if you get a match. But back in 2001, after tests were run on the DNA found at the scene of Leslie Preer's murder, no matches were found. Not in the federal CODIS database of violent criminals and not among Leslie's family and friends. In hindsight, this dead end showed the limits of forensic DNA in 2001. That federal database of violent offenders. Well, by definition, it's limited to violent offenders. That's a pretty small pool of potential matches, at least compared to what came
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next
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tonight, an arrest. And authorities say they used a family genealogy website to make that arrest.
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About a decade ago, law enforcement began using a new kind of database, a pool of DNA wider and deeper than anything before. It's a cutting edge genetic tool now heating up the coldest of cases. A genetic profile created from crime scene DNA was uploaded to a public genealogy database.
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If you're a criminal and you've left your DNA at the scene, you might as well turn yourself in now.
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Genetic genealogy has revolutionized detective work, especially in cold case investigations. It began with the excitement around at home DNA tests and ancestry websites. As everyday people spat in tubes and mailed them off, new databases began to grow. Soon, these databases contained the genetic information of millions of people. Today, these databases are big enough and DNA tests sensitive enough that you can build family trees containing the names of people who never submitted their DNA at all. These tools were a revelation for people interested in their ancestry and for law enforcement as well. Police, often working with outside labs, began using some of these databases, building family trees with the DNA of suspects. At the center. In 2022, detectives Tara Augustin and Allison Dupois sent some 20 year old blood to a lab. Soon, the detectives received a list of partial matches for that unknown male DNA.
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We get shared matches of people from all over the place, and they can be really low matches, which means that they share a very minimal amount of DNA with our suspect. The higher matches, that's more DNA. So that's going to be maybe a little bit easier of a family tree to build.
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Detectives spent months building family trees. They used not only the DNA test results, the lists of online profiles that were high or low matches, but another source as well.
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Historical documents, obituaries, marriage documents, census records, all of those things. That's what we have to do when we're building the family trees. So it's a little bit of like, history detective as well as regular detective work.
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This work often resembled that of an amateur genealogist, except instead of trying to track down their ancestors, they were trying to track down a potential murderer. Genealogy databases have genetic information for people all over the world, but things like census records and obituaries, they're not always that easy to find abroad. So detectives started building family trees featuring lots of American families, searching for someone who might have been in Maryland in May 2001. The problem was the Americans who populated these family Trees. They shared, on average, less DNA with the unknown male subject. They were multiple degrees removed from the possible killer. In the end, these lower matches were got detectives nowhere.
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It had been about a year and a half of working on these low matches. And I, I just wanted to. Why don't we explore these higher matches?
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The higher matches tended to lead back to people who lived outside the United States. One match led them to, of all places, Romania.
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Just doing basic Google searches and looking at publicly available data, I was able to find out a lot of information about this family line from some. Someone that actually had done a lot of genealogy work that is in the family.
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Specifically, the detectives found a blog maintained by a sort of family genealogist. It featured lengthy posts written in Romanian, interspersed with black and white photos and scans of newspaper articles, precisely the kind of primary sources the detectives needed.
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This person had done a really thorough job of documenting a lot of that stuff.
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And in one of the blog posts, I came across the name Virgil Glegore.
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Virgil Glegor.
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That kind of clicked in my head because I remembered the name Glegor and I knew it was in the case file.
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The name Glegor was in the case file because it was the surname of a Eugene Glegor. Lauren Preyer's high school boyfriend. Eugene Glegor had been the subject of a tip. Detective Scott back in 2002.
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A lady that lived in the neighborhood where this individual, Eugene Glegor, lived said, I know that he used to date the victim's daughter. And he was getting in trouble in the neighborhood for noise complaints and just nuisance things where the police had come out there. For some reason, he stuck out to her, and she said, I just want to let you guys know, look at this guy. It was just a hunch.
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The detective who took the tipster's call back in 2002 did act on it.
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He went by the residence that the tipster had given to try to locate Eugene or to get any information about him. And it appears that he hit a couple of dead ends. And that was.
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Seems like, you know, Eugene at that time may have just fallen into the list of people who knew the family and who were acquainted with the family. And, you know, maybe it would have been a knock and talk and a request for DNA, but they weren't able to locate him. And it just is one of those, you know, loose ends that was never tied up.
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It's worth emphasizing, according to law enforcement, police had no probable cause connecting Lauren's high school boyfriend with her mom's murder. The Two had broken up a few years before Leslie's murder. By all accounts, the breakup was perfectly amicable. And at the time of the murder, Lauren and Eugene weren't really in each other's lives anymore.
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There never was any indication that there was a bad relationship between Lauren and him or Leslie and him. And it just. His name was brought up, and they looked at him and they said, well, you know, he's gotten in a little bit of trouble with the police. But nothing raised flags to say, hey, this guy's a killer.
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But there was someone else suspicious of Eugene even before Leslie was murdered. Here's Lauren.
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My dad never liked him. He thought there was always something off and, you know, a dad's instincts. And, of course, as being a teenage girl, I was like, daddy, you're just being a protective dad.
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What would your mom say about that? Knowing that your dad wasn't 100% on board with Eugene?
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She would just say, you're being overprotective. He's a good kid kind of thing. And then after she was gone, he said, you think Eugene can be a part of this? It was mentioned more than one time. And again, of course, I said, no. Like, what are you talking about?
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Her high school boyfriend killing her mom. Lauren didn't buy it. And police say Eugene Glegor didn't have a rap sheet that screamed murder.
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Eugene did have some police interactions throughout the years. At some point, he had been charged with marijuana possession. There were a couple of incident reports for thefts or burglaries where he was listed as a suspect, but he was never charged because either there wasn't enough evidence, or the families decided not to go forward with anything.
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So these findings didn't really paint a picture of a brutal, bloody murderer, did it?
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No, not at all. No.
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And yet the discovery seems significant. A partial genetic match that had led detectives to a name that had come up during the original investigation. A name that was in the case file.
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I remember I was downstairs in our office, and I. I said, allie, come over here and look at this. Look at this and make sure it makes sense. And I. I think this is something really good.
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And.
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And she came over, and she was like, oh, wow.
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And.
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And I thought, this is a really good lead. Like, this is, like, the biggest break we've had up until this point.
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Detectives looked into Eugene Gligor. What they learned was troubling.
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I ended up leaving that house that night. I did not stay there because I was afraid of him.
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She thought he might go after her.
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Once I saw that, that kind of changes things to where he might be capable of actually killing someone.
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Blood and water is a production of abc audio in 2020, hosted by me, stephanie ramos. Produced by madeline wood, shane mckeon and kiara powell with help from emily schutz and caitlin schiffer. Edited by gianna palmer. Our supervising producer is susie lu. Music by evan viola. Mixing and mastering by bob mallory. Scoring by kiara powell. Special thanks to katie dendoz, janis johnston, sean dooley, chris donovan, camille peterson, christina corbin, gail deutsch, amanda carr, ellie joestad, ng adam and michelle margulis. Josh cohan is our director of podcast programming. Eamon mcniff is our executive producer.
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Sunday nights on abc. What happens when the person you love the most turns out not to be who you think they are? And we feel he told me was a lie.
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I was betrayed.
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“Facts Don’t Lie” explores the decades-long investigation into the 2001 murder of Leslie Preer in the affluent suburbs of Washington, D.C. The episode centers on how initial suspicions focused on Leslie’s husband, Sandy Preer, whose life was upended by the case. It details the impact of that suspicion on their daughter Lauren and chronicles the breakthrough that came more than 20 years later with the advent of genetic genealogy. Through interviews with cold case detectives, original police tapes, and Lauren herself, the episode reveals the painstaking work and new forensic technology that finally brought justice—and vindication.
This episode poignantly reveals how a family was shattered not only by a brutal murder but by the long shadow of suspicion cast over an innocent spouse. Through Lauren Preer’s steadfast quest for the truth and the meticulous work of the cold case detectives, “Facts Don’t Lie” exemplifies the evolution of forensic science and the perseverance required to right old wrongs. The revelations about genetic genealogy—and the mix of luck, technology, and dogged detective work needed to build a case—underscore how even the coldest cases can find resolution, and how justice often arrives too late for some to see.
End of summary for Blood and Water: Episode 4 – "Facts Don't Lie".