ABC News July 21, 2023

Family of Gilgo Beach murder suspect releases statement: 'Devastating time'

WATCH: Police investigating Gilgo Beach suspect for ties to missing South Carolina teen

The relatives of Gilgo Beach, New York, murder suspect Rex Heuermann are "going through a devastating time," their attorney said in a statement Friday.

Heuermann's arrest "is taking an emotional toll," the attorney said, adding that Heuermann's wife, who filed for divorce on Wednesday, has declined to comment further.

Suffolk County Sheriff's Office via Getty Images, FILE
In this handout provided by the Suffolk County Sheriff's Office, Rex Heuermann poses for his booking photo on July 14, 2023.
MORE: South Carolina police investigating Gilgo Beach murder suspect for ties to missing teen

One theory investigators are exploring is whether Heuermann, a father of two, killed any of his alleged victims inside his Massapequa Park, Long Island, home, but law enforcement sources told ABC News they are still searching for the evidence.

Crime lab technicians are at Heuermann's house for an eighth consecutive day Friday and the painstaking process is expected to last at least through the weekend, sources said.

Johnny Milano/The New York Times via Redux
Investigators comb through the home of Rex Heuermann in Massapequa Park, N.Y. after he was arrested as she suspect in the Gilgo Beach killings, on July 15, 2023.
John Minchillo/AP, FILE
Authorities remove evidence as they search the home of suspect Rex Heuermann, Tuesday, July 18, 2023, in Massapequa Park, N.Y.
MORE: Wife of Gilgo Beach murder suspect files for divorce, court filing shows

Prosecutors have said that, based on phone records, Heuermann's wife and children were not home at the time of the killings. The records also point to the house as a location where phones pinged, but prosecutors were careful not to identify a location yet where they believe the victims were killed.

Heuermann, a New York City architect, was arrested on July 13 for the murders of three sex workers -- Melissa Barthelemy, Megan Waterman and Amber Costello -- whose bodies were found covered in burlap on Long Island's South Shore in 2010. The young women disappeared in 2009 and 2010.

MORE: Gilgo Beach murders: A timeline of the investigation

Heuermann's defense attorney entered a not guilty plea on his behalf last week.

Heuermann is also the prime suspect in the death of a fourth victim, Maureen Brainard-Barnes, who vanished in 2007, though he has not been charged in that case.

AP
This combination of undated image provided by the Suffolk County Police Department, shows Melissa Barthelemy, top left, Amber Costello, top right, Megan Waterman, bottom left, and Maureen Brainard-Barnes.