Police returned to the Massapequa Park home of suspected Gilgo Beach serial killer Rex Heuermann Monday.
Investigators with state and county police were spotted outside the home Heuermann, 60, shared with his estranged wife, Asa Ellerup, and their two adult children Victoria, 27, and Christopher, 34, according to WABC-TV, WNBC-TV, and WCBS-TV.
It's unclear what they were searching for and no family members were home at the time, NewsNation reported.
Heuermann was first arrested in July 2023 for the alleged serial killings of three female sex workers – Melissa Barthelemy, Megan Waterman and Amber Costello – whose remains were found in the Gilgo Beach area in 2009 and 2010. He was charged with three counts each of first- and second-degree murder, according to authorities.
In January, he was charged with the murder of a fourth woman, Maureen Brainard-Barnes, who disappeared in 2007.
He pleaded not guilty to all charges.
According to court documents, the victims appeared to be strangled and their bodies were wrapped in burlap, CBS News reported. Heuermann – also known as the Long Island serial killer – may be tied to at least six more slayings in the area.
He previously worked as an architect in Manhattan, where he was arrested last summer outside his office.
"He was very organized. He was very friendly," a work acquaintance said, according to NBC News. "I did not see this coming."
Last month, police were spotted combing the Manorville, Long Island woods, in connection with the investigation.
Heuermann is due back in court June 18.
