Suspected Gilgo Beach serial killer Rex Heuermann set to plead guilty in court today

Alleged Gilgo Beach serial killer Rex A. Heuermann is scheduled to appear in a Riverhead courtroom Wednesday morning, where he's expected to plead guilty to a superseding indictment charging him with the murders of seven women over a span of decades.

Heuermann is also expected to admit killing an eighth victim, Karen Vergata, whose homicide is not charged in the indictment. Prosecutors have said that Heuermann was a suspect in Vergata's killing.

Heuermann, 62, of Massapequa Park, has publicly maintained his innocence in the killings since his July 13, 2023, arrest.

Heuermann is charged with killing Amber Costello, Melissa Barthelemy, Megan Waterman, Maureen Brainard-Barnes, Valerie Mack, Jessica Taylor and Sandra Costilla.

By Nicole Fuller

nicole.fuller@newsday.com@NicoleFuller

Nicole Fuller is Newsday's senior criminal justice reporter. She began working at Newsday in 2012 and previously covered local government.