Rex A. Heuermann, the alleged Gilgo Beach serial killer, is expected to plead guilty to an eighth homicide when he returns to court on Wednesday, a significant development in the 17-year killing spree investigation. Heuermann, 62, of Massapequa Park, is anticipated to admit to the 1996 killing of Karen Vergata, a Manhattan mother whose remains were found at separate locations: west of Gilgo Beach and on Fire Island, more than a decade apart. This plea hearing is scheduled for 11 a.m. before State Supreme Court Justice Timothy Mazzei in Riverhead.

Suffolk County District Attorney Ray Tierney, who had previously declined to comment on negotiations, and Heuermann's defense attorney Michael J. Brown, could not be immediately reached for comment. Tierney’s office has scheduled a news conference for 2 p.m. Wednesday at the Suffolk County Police Academy in Brentwood, to accommodate an anticipated large media presence. He will be joined by Suffolk Sheriff Errol D. Toulon Jr., Suffolk County Police Commissioner Kevin Catalina, and representatives from the Gilgo Beach Homicide Investigation Task Force, New York State Police, Federal Bureau of Investigation, and family members of the homicide victims. Relatives of alleged victims, whom Heuermann has denied killing, were informed by Suffolk police two weeks ago that a change of plea was expected.

The plea agreement, whose full details are not yet public, marks a stunning turn in a case that has garnered extensive media coverage through books, films, and documentaries since the discovery of four women's skeletal remains along Ocean Parkway near Gilgo Beach in December 2010. Vergata had long been linked to the Gilgo Beach killings due to her partial remains being found near Ocean Parkway in April 2011. She was often referred to as “Fire Island Jane Doe” because additional remains were found on Fire Island 15 years earlier. The Gilgo Beach Homicide Task Force publicly identified Vergata in August 2022, less than a month after Heuermann's arrest, using investigative DNA techniques that were not available at the time of her death.

Karen Vergata, born on November 4, 1961, was the second child of Dominic and Ann Vergata, with an older brother, Victor. The family resided in Glen Head. Vergata had two sons, Gary Doherty (37) and Eric Doherty (35), who were adopted in 1994, two years before her death, as she struggled with addiction. Known as a sex worker, Vergata last contacted her father on Valentine's Day 1996. Her legs were discovered in a plastic garbage bag by two brothers near the Davis Park community on April 20, 1996. Her parents are deceased, and her cremated remains are now being returned to her sons for a dignified funeral, nearly 30 years after her disappearance. Her sons, Gary and Eric, expressed relief and gratitude, with Eric noting the peace of finally holding a ceremony for their mother after decades of uncertainty. Diane Doherty, who adopted the boys with her late husband, Edward, mentioned their desire to have their mother placed in a grave where they too can rest with her.

Vergata’s life was complex. She was a petite girl who suffered from scoliosis. She attended North Shore High School, where she was known as “Pumpkin” and appreciated fashion. Classmates remembered her as sweet and having her own style despite her struggles. She had a relationship with Guenther Hugo Lind, a married man and longtime employee of Fred Trump, who fathered her two sons. She lived in one of Fred Trump's Brooklyn buildings for a time. Vergata's struggles with drugs continued, leading to an accident while pregnant with Gary, resulting in injuries and a $90,000 settlement. Gary was born prematurely with cerebral palsy. After Eric's birth in 1990, Vergata's ongoing drug and psychological problems led to the boys' adoption by the Dohertys. Lind, who died in 1991, offered to move Vergata to one of his upstate New York homes to escape city influences, but she refused to be far from her children. After Lind's death, Vergata faced numerous arrests for prostitution and drug possession in New York City between 1991 and 1994, none of which acted as deterrents. Her father, Dominic, who passed away in 2022, disinherited her in his will after attempting to file a missing persons report and having her declared legally dead in 2017.

Heuermann first became a suspect in March 2022 after an investigator learned that alleged victim Amber Lynn Costello was picked up by a man driving a green Chevrolet Avalanche. Police had already identified Massapequa Park and New York City as likely locations for the killer based on phone calls to victims. The task force, comprising multiple law enforcement agencies, built the case using burner phones, triangulated cell site data, advanced DNA testing (including from a pizza crust discarded by Heuermann), surveillance, and his internet search history, which revealed an interest in torture pornography and the investigation itself. Heuermann was arrested on July 13, 2023, as he left his Manhattan office, due to concerns he continued to use sex workers and might attack again.

Heuermann was initially charged with first- and second-degree murder in the killings of Amber Lynn Costello, Melissa Barthelemy, and Megan Waterman. In January 2024, he was indicted on a second-degree murder charge in the death of Maureen Brainard-Barnes, effectively linking him to the “Gilgo Four.” These women were killed between 2007 and 2009, during times when Heuermann's wife, Asa Ellerup, and children were on vacation. Their skeletal remains were found without clothes and bound. Heuermann was further indicted on three additional second-degree murder charges for the killings of Valerie Mack (2000), Jessica Taylor (2003), and Sandra Costilla (1993). Mack and Taylor were mutilated, their severed bodies found in disparate locations off Ocean Parkway and in Manorville. Costilla was found with sharp-forced wounds in North Sea, about 60 miles from Gilgo Beach. These killings also occurred while Heuermann was alone, and prosecutors believe they likely happened in the basement of his Massapequa Park home. All seven women previously charged were said to have engaged in sex work, a characteristic also associated with Karen Vergata, bringing the total alleged victims to eight.