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48 Hours

Inside the Sentencing of the GIlgo Beach Serial Killer

19 Jun 2026

Transcription

Transcript generated automatically by AI and may contain errors.

Chapter 1: What happened during Rex Heuermann's sentencing?

5.245 - 18.799 Kimberly Overstreet

A million years isn't enough because you won't suffer for that long. You will spend the rest of your forever in prison and it doesn't feel satisfying. Nothing will ever make this right. This kind of grief stays.

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20.737 - 34.893 Erin Moriarty

It was an incredibly emotional day in court for the families of the victims of the Long Island serial killer Rex Heuermann, who had pleaded guilty to the murders of seven women spanning from 1993 to 2011.

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34.913 - 45.225 Missy Cann

My mother was not a headline, a statistic or a label. You thought you took her voice, but you didn't know that she had people who loved her.

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45.728 - 61.864 Liliana Waterman

You hunted her, and I hunted you. His actions changed the course of my life forever. They devastated my family, but they also shattered the lives of his own family, who now must live with the knowledge that they shared a home with a serial killer.

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62.671 - 80.477 Erin Moriarty

We have reached the final chapter of this high profile case that has cast a shadow over the shores of Gilgo Beach on Long Island and over so many families for years. I'm 48 Hours correspondent Erin Moriarty, and this is Case by Case.

80.457 - 112.75 Erin Moriarty

On Wednesday, June 17, 2026, Heuermann was sentenced to life in prison without the possibility of parole for three counts of first-degree murder and then 25 years to life for each of the four counts of second-degree murder, all to run consecutively for the murders of Melissa Barthelemy, Megan Waterman, Amber Costello, Maureen Brainerd Barnes, Jessica Taylor, Sandra Costilla, and Valerie Mack.

112.77 - 118.977 Erin Moriarty

Rex Heumann spoke in court, didn't say a lot, and he showed very little emotion.

119.938 - 133.431 John Burns

There are no words I can say. I am responsible for what was said in this room today. The words I would say have no meaning, and I'm going to leave it there

134.98 - 145.26 Erin Moriarty

Heuermann has also admitted to killing an eighth woman, Karen Vergada. However, as part of the plea deal, he was not actually charged with Vergada's murder.

Chapter 2: How did the families of the victims express their grief in court?

146.041 - 160.327 Erin Moriarty

Rex Heuermann, though, will never hurt another woman. I've been reporting on this case since 2011. Over the years, we've interviewed the family members and friends of the murder victims. I've come to know many of them personally.

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160.788 - 179.652 Erin Moriarty

And from the beginning, our goal was to make sure these women weren't seen simply as escorts, as they were often portrayed in the media, but as mothers, sisters, daughters, and friends, people whose lives mattered and whose loved ones never stopped searching for answers.

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179.632 - 196.611 Erin Moriarty

Joining me today to discuss the dramatic sentencing is CBS News legal analyst and criminal defense attorney Caroline Polisi, who has been following this case since Heuermann was arrested in 2023. Thanks for joining us, Caroline.

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196.591 - 221.043 Caroline Polisi

Thanks for having me, Erin. I've been watching your coverage of this case for many years now, and it's a real honor to be here today. I mean, you could feel that emotion in the courtroom. I found it so interesting. I mean, you could literally hear the judge's voice quivering as he delivered this colloquy, which was escalating to the end. He was yelling. He even wiped away tears at one point.

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221.123 - 226.21 Caroline Polisi

I mean, I've never seen a judge really get so worked up at sentencing.

226.19 - 248.621 Erin Moriarty

I mean, in fact, the only person who didn't show emotion was the person who should have, the one who brought everybody together, Rex Shorman. Let's start about, let's just start where this whole case started. And it's interesting. It began as a search for a missing woman, 23-year-old Shannon Gilbert. I want to be clear. Shannon was not one of the murder victims.

249.102 - 258.433 Erin Moriarty

Shannon had been working as an escort and had been at a client's house on Long Island once. when she called police in a panic, and then she suddenly vanished.

262.036 - 282.015 Erin Moriarty

Police did an exhaustive search for Shannon, and while searching in an area near Gilgo Beach, police found human remains of four other women who became known as the Gilgo Four, Maureen Brainerd Barnes, Amber Costello, Megan Waterman, and Melissa Barthelemy.

281.995 - 295.515 Caroline Polisi

Shannon's remains were eventually found about a year and a half after her disappearance. The police believe her death was not a murder and not connected to the other victims that Shannon had instead died from an accidental drowning.

Chapter 3: What was Rex Heuermann's demeanor during the sentencing?

492.193 - 500.647 Erin Moriarty

I have to be honest, I remember hearing the news Rex Huerman. I mean, that name wasn't even on the radar.

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501.328 - 516.965 Caroline Polisi

Same. I mean, I was shocked. I was really initially just stunned by the profile of this guy. I mean, essentially, he's the monster living among us, right? He went undetected for years. They finally were able to put all of those pieces together.

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517.025 - 539.187 Caroline Polisi

Investigators say Huerman's personal cell phone records show that his phone was in the same area as those burner phones when they were used to contact victims. They also say that when the burner phones contacted victims, they were often in Massapequa Park, where Heuermann lived, or Midtown Manhattan, where his architectural firm was located. But there was also DNA evidence.

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539.267 - 562.053 Caroline Polisi

Police tailed Heuermann and recovered his DNA from a discarded pizza crust in Midtown Manhattan, which was consistent with the DNA profile found on a male hair discovered with Megan Waterman's body. And from a legal perspective, when you think about investigative techniques, you know, a discarded pizza crust is fair game for law enforcement to use to test for DNA.

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562.514 - 576.973 Caroline Polisi

Remember, Heurman had never been arrested before, so obviously none of his forensic information was in any database like CODIS, which is the centralized system that combines local, state and national crime labs information. So they had to get a new sample for this guy.

576.953 - 602.013 Erin Moriarty

And that's what made it so difficult to track him down for so long was usually a killer is connected to a victim and he was picking strangers. So this DNA became so crucial. Huberman was arrested in 2023 and he was charged with multiple counts of murder in the deaths of Melissa Barthelemy, Megan Waterman and Amber Costello. He pleaded not guilty.

602.434 - 628.459 Erin Moriarty

And then in 2024, he was also charged with more murders. Maureen Brainerd Barnes, Sandra Costilla, Jessica Taylor and Valerie Mack. And again, also pleaded not guilty. So let's talk a little bit, Caroline, what the investigators learned about this man after his arrest.

628.675 - 652.118 Caroline Polisi

Well, that's right, Aaron. I mean, it's just so chilling. This is where we start to get this picture of a serial killer essentially hidden in plain sight. By all accounts, he was this family man who led a normal sort of boring suburban existence. He commuted to the city every day to do his job and provide for his family. He ran an architectural consulting firm in Midtown Manhattan.

652.098 - 667.828 Caroline Polisi

He has a stepson and a daughter with his now ex-wife, Asa Ellerup, who was born in Iceland. And she would take the children to see her family there in the summers. And it was during those trips and some others that police believed that Huerman killed the women.

Chapter 4: How did the investigation into the Gilgo Beach murders evolve over the years?

931.795 - 937.525 Erin Moriarty

And how unusual is that really to keep track of all these things for a killer?

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937.505 - 960.778 Caroline Polisi

Yeah, well, and he would have to, given how many victims there were over the course of how many years. I mean, 17 years we're talking about. The details are, as you would expect, just absolutely chilling. The document has four columns labeled Problems, Supplies, DS, and TRG, which police believe stood for Dump Site and Targets.

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960.758 - 968.047 Caroline Polisi

Among the problems that he listed down there, DNA, tire marks, bloodstains and more. I mean, it's just it's just chilling.

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968.728 - 986.85 Erin Moriarty

Well, also, he was really keeping track of the investigation itself. I mean, I did not initially believe that so many bodies would be connected with the Long Island serial killer. But he is really proof of how someone would change his M.O. because he did over the years.

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986.83 - 1009.058 Caroline Polisi

Yeah, it really seemed like he was essentially honing his craft, as it were. And, you know, these meticulous notes that he would have when his family were away on vacation. I mean, he had to plan it out day by day, minute by minute in order to stay undetected and under the radar for that period.

1009.038 - 1025.562 Erin Moriarty

And there were also some interesting reports of how Heuermann has spent the last three years in jail, specifically what he reads, who he's been talking to, that also give a sense of his character and mindset.

1025.727 - 1052.612 Caroline Polisi

Yeah, absolutely. Suffolk County Sheriff Errol Tulin told the Associated Press that Heuermann has been a really voracious reader in jail with a preference for violent crime and mystery novels, some involving serial killers. Tulin also said that Keith Hunter Jesperson, the infamous happy face killer who's currently serving multiple life sentences in Oregon, reached out to Heuermann by letter.

1052.592 - 1057.959 Caroline Polisi

Kierman did write back, but he hasn't responded to several follow up letters from Jesperson.

1058.439 - 1066.369 Erin Moriarty

Sorry, I think it's very creepy that this case has brought out response from other serial killers.

Chapter 5: What evidence led to Rex Heuermann's arrest?

2070.832 - 2088.062 Erin Moriarty

I really appreciate you being here talking about this very, very tough and emotional hearing. But thanks for being with us today. Thank you so much for having me. And I want to thank all of you for listening. Be sure to rate and review wherever you get your podcasts.

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2093.408 - 2097.813 Joanne Mack

Now streaming on Paramount+. Beth and Rip are back in Dutton Ranch.

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2099.415 - 2101.938 Erin Moriarty

This life here is gonna work, isn't it?

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2101.958 - 2105.201 José Díaz-Balart

We'll make it work. Starring Kelly Reilly.

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2105.221 - 2108.345 Liliana Waterman

A legacy is a beautiful thing, but only if it survives.

2108.365 - 2109.086 José Díaz-Balart

Cole Hauser.

2109.266 - 2117.896 Joanne Mack

What's gonna work? Ed Harris. Family is the only thing we're fighting for. And Annette Bening. I can make this a lot harder for all y'all. And peace will have to wait.

2117.916 - 2121.88 Caroline Polisi

Dutton Ranch. New series now streaming on Paramount+.

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