Gilgo Beach serial killing suspect Rex Heuermann charged with 2 more murders: A look at the case and what's next

Heuermann has now been charged with killing six women.

Rex Heuermann, the suspected Long Island serial killer, was charged with the murders of two more women, prosecutors in New York announced on Thursday. In total, New York authorities have now charged Heuermann in the killings of six women that occurred over the course of three decades.

The new charges come after police investigators conducted searches of Heuermann’s home in Massapequa Park, N.Y., and a wooded area tied to the Gilgo Beach serial killings.

“The investigation continues, and that investigation has been expanded both to the bodies that have been found on Gilgo [Beach] and beyond,” Suffolk County District Attorney Ray Tierney told reporters Thursday. “This case continues.”

Heuermann, a 60-year-old married father and former architect, was charged Thursday with second-degree murder in the 2003 death of Jessica Taylor, 20, and the 1993 death of Sandra Costilla, 28, according to prosecutors.

In July 2003, some of Taylor’s bodily remains were discovered in Manorville, N.Y. Then in 2011, her skull, hands and forearms were found along a highway near Gilgo Beach.

According to investigators, phone records showed that Heuermann’s wife and children were out of town at the time Taylor was killed.

“[This] would have allowed Defendant Heuermann unfettered time to execute his plans for Ms. Taylor, which included the decapitation, dismemberment, and transportation of her remains, without any fear that his family would uncover or learn of his involvement in these crimes," according to court documents.

The killing of Costilla was long thought to have been done by another person. Costilla’s remains were found in Southampton, N.Y., in 1993.

Hair remains found on Taylor's and Costilla’s bodies were linked to Heuermann through DNA testing, forensic experts said.

As a result of investigators searching Heuermann’s home, they seized hundreds of electronic devices. They discovered a “planning document” on a hard drive found in his basement used to “methodically blueprint” his killings, according to prosecutors.

Investigators also discovered the electronic devices contained a large amount of violent bondage and torture pornography. “That material was very similar to the condition that the two latest victims were left in,” Tierney told reporters Thursday.

Sandra Costilla, Jessica Taylor, Amber Costello, Meghan Waterman, Melissa Barthelemy and Maureen Brainard-Barnes. (Courtesy of the family (2), Suffolk County Sherrif's Dept. (4)).
Sandra Costilla, Jessica Taylor, Amber Costello, Meghan Waterman, Melissa Barthelemy and Maureen Brainard-Barnes. (Courtesy of the family (2), Suffolk County Sherrif's Dept. (4)).

Heuermann was first arrested in July 2023 and charged with first-degree murder for the deaths of Melissa Barthelemy in 2009, Megan Waterman in 2010 and Amber Costello in 2010, all of whom were sex workers in their 20s.

Then in January of this year, Heuermann was also charged with second-degree murder in connection with the death of Maureen Brainard-Barnes, a 25-year-old sex escort who disappeared in 2007.

All of the remains of these victims were found over a decade ago, bound in a deserted spot on the north side of Long Island’s Ocean Parkway, near Gilgo Beach.

Rex Heuermann, center, charged in the Gilgo Beach serial killings on Long Island, enters the courtroom in Riverhead, N.Y.
Rex Heuermann, charged in the Gilgo Beach serial killings on New York's Long Island, enters the courtroom in Riverhead, N.Y., on June 6. (James Carbone/Pool via AP)

Heuermann on Thursday pleaded not guilty to the two new murder charges. He previously pleaded not guilty to the other four murder charges. The judge ordered that he remain in jail without bail.

His next court date is scheduled for July 30. A trial date has not been set.