Gilgo Beach serial killer Rex Heuermann pleads guilty in decades-long string of murders

The long-awaited resolution of a chilling case unfolded on Wednesday as the man accused of killing seven women and leaving their bodies across Long Island, New York, finally confessed. This brings to a close a case that has haunted the region with fears of an elusive serial killer.

Rex Heuermann, a 62-year-old architect, admitted in court to the murders of Melissa Barthelemy, Megan Waterman, Amber Costello, Maureen Brainard-Barnes, Jessica Taylor, Sandra Costilla, and Valerie Mack.

Heuermann also acknowledged responsibility for the uncharged murder of Karen Vergata.

During the court proceedings, Heuermann revealed that each victim had been strangled. His sentencing is scheduled for June 17.

Rex Heuermann, the Gilgo Beach serial killer, pleads guilty

Identified as the Gilgo Beach serial killer, Heuermann’s confession in court marked the conclusion of his 17-year spree that claimed the lives of eight women.

Before Heuermann’s plea change, Suffolk County District Attorney Ray Tierney asked him to verify details of each crime as the victims’ families reacted with audible gasps and tears in the courtroom.

“On or about July 6, 2010, did you meet Megan Waterman with the intent to cause her death and did you cause her death?” Tierney said. 

“Yes,” Heuermann replied. 

Tierney went on to ask how Waterman – along with the other victims – were killed. 

“Strangulation,” Heuermann confirmed as Tierney asked about each victim’s death, one-by-one. 

Heuermann’s ex-wife, Asa Ellerup, and daughter, Victoria Heuermann, could be seen holding hands and clutching tissues as they listened. 

“My thoughts and prayers are with the victims and their families,” Ellerup told reporters outside the courthouse immediately following the plea. “Their loss is immeasurable. And the focus should be on them at this time and moment. I ask that you give some privacy to my family as they navigate through this very difficult time.” 

Heuermann has also agreed to work with the FBI’s Behavioral Analysis Unit to be studied by federal officials as part of his agreement with prosecutors, according to his attorney. Brown said Heuermann has an obligation to be “truthful, accurate and complete” with the FBI.

“A defendant also has an absolute right to change his plea to accept responsibility and enter a plea of guilty,” defense attorney Michael Brown said Wednesday after the guilty plea.

“That decision is ultimately up to the defendant,” Brown added. “He controls his case, and that’s his prerogative. That’s his right. And that’s what happened here today, when Rex decided that he wanted to accept responsibility and didn’t want to proceed to trial.” 

Remains of eight victims found scattered in Long Island New York

The remains of Sandra Costilla, Melissa Barthelemy, Megan Waterman, Amber Costello, Valerie Mack, Maureen Brainard-Barnes, Jessica Taylor and Karen Vergata were found scattered throughout Long Island, New York. (Fox News Digital)

Heuermann was arrested outside his midtown Manhattan office in July 2023 and had maintained his innocence for nearly three years. A trial had been set for September.

The Gilgo Beach investigation was thrown into the spotlight in 2010 after police discovered numerous sets of human remains along an isolated beach highway on Long Island, while searching for 23-year-old Shannan Gilbert, according to the Associated Press. 

Investigators relied heavily on DNA analysis to identify the remains of several victims found scattered throughout Long Island.

Remains of six women – Barthelemy, Costello, Brainard-Barnes, Waterman, Taylor and Mack – were recovered along Ocean Parkway in Gilgo Beach. 

The remains of a seventh victim, Costilla, were found more than 60 miles away in the Hamptons.

Police officers removing items from Rex Heuermann's home in Massapequa Park New York

Police remove items from the home of Rex Heuermann in Massapequa Park, N.Y., July 20, 2023. (Mega for Fox News Digital)

Asa Ellerup and daughter Victoria Heuermann departs the Suffolk County Courthouse

Rex Heuermann’s ex-wife Asa Ellerup, center, and daughter Victoria Heuermann, left, depart the Suffolk County Courthouse in Riverhead, New York on Tuesday, January 16, 2024.  (Robert Miller for Fox News Digital)

An eighth woman, Karen Vergata, was discovered nearly 20 miles west on Fire Island in 1996, and later near Gilgo Beach in 2011. 

Heuermann also admitted to the uncharged murder of Vergata on Wednesday, marking yet another victim in a case dating back to 1993. 

“Today was a very special day for us in law enforcement, because it gave us the opportunity to turn to these victims and their families and say, ‘Listen, we told you we were going to work really hard. We told you we were going to do everything we can to bring closure to you,’ and that’s why we work in law enforcement,” Tierney said in a news conference Wednesday. 

“This defendant walked among us, play-acting as a normal suburban dad,” Tierney continued. “When in reality, all along, he was obsessively targeting innocent women for death.” 

Rex Heuermann, the Gilgo Beach serial killer

Rex Heuermann, the Gilgo Beach serial killer, pleads guilty in court on Wednesday to the murders of eight women during a 17-year killing spree. (James Carbone/Newsday/Pool   )

“He thought that by killing them, he could silence them forever and get away with murder. But he was wrong, because it was these victims, these women, who refused to stay silent.” 

Speaking to the media after Heuermann’s plea, loved ones of the victims expressed their gratitude to the investigators and prosecutors who spent years working to bring the killer to justice, while accepting the outcome of the case. 

Rex Heuermann, the Gilgo Beach serial killer

Rex Heuermann, the Gilgo Beach serial killer, pleads guilty in court on Wednesday to the murders of eight women during a 17-year killing spree. (James Carbone/Newsday/Pool   )

“I am glad that this is over,” Elizabeth Baczkiel, Taylor’s mother, said. “I am glad that this is over. As far as him pleading guilty, it took a big chunk of stress off of me and my family.” 

In 2022, Heuermann, who was living in nearby Massapequa Park, was identified as a suspect after the newly-formed Gilgo Beach task force used a vehicle registration database to connect him to a pickup truck that a witness reported seeing when one victim disappeared in 2010. 

Rex Heuermann being led into Arthur M. Cromarty Criminal Complex in Riverhead, New York

Rex Heuermann is led into Arthur M. Cromarty Criminal Complex in Riverhead, N.Y., on July 14, 2023. (Matt Agudo/Splash for Fox News Digital)

Detectives quickly began looking into Heuermann’s life, with prosecutors alleging he used burner phones to arrange meetings with the victims before abducting them.

Retested DNA found on the victim’s remains also pointed to Heuermann, with cellphone data indicating he had been in contact with a few of the women shortly before they disappeared. 

Internet search history also revealed Heuermann’s interest in graphic torture pornography and news surrounding the Gilgo Beach killings – including the renewed investigation efforts.

Investigators ultimately obtained Heuermann’s DNA after he threw a box of partially eaten pizza crusts into a sidewalk trash can outside his office in midtown Manhattan. The DNA found on the box was then linked to a male hair recovered from burlap used to restrain one of the victims. 

Following his arrest in 2023, detectives spent nearly two weeks scouring the backyard of Heuermann’s family home. There, they found a basement vault holding 279 weapons, along with a computer containing what prosecutors described as a “blueprint” for the killings.

Last year, Suffolk County Judge Timothy Mazzei dealt a blow to Heuermann’s defense by ruling evidence gathered from newly-released DNA technology would be admissible at trial, with prosecutors claiming the evidence directly connected Heuermann to the murders. 

Heuermann is expected to be handed three consecutive sentences of life in prison without the possibility of parole for the murders of Barthelemy, Waterman and Costello, along with an additional consecutive sentence of 100 years to life for killing Brainard-Barnes, Taylor, Costilla and Mack, the Suffolk County District Attorney’s Office said in a statement. 

In exchange for his admission to the killing of Vergata, the additional plea has been added to Heuermann’s plea to the seven murders. 

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