Gilgo Murder Investigation: SC Sheriff Working With NY Law Enforcement

MASSAPEQUA PARK, NY — As the search for evidence in the Gilgo Beach serial killings expands into other parts of the country, the Chester County Sheriff's Office in South Carolina working with New York law enforcement, a representative confirmed with Patch.

Rex Heuermann, 59, of Massapequa Park, was charged with six counts of murder in the deaths of Amber Costello, Melissa Barthelemy, and Megan Waterman.

The architect became a suspect of interest in March 2022 when a special task force linked his car to a witness' testimony.

The witness told law enforcement they saw Costello trick Heuermann out of money in a scam, and that he got into a Chevrolet Avalanche. Investigators believe Heuermann picked up Costello the second and final time in the Avalanche.

The task force traced the car to Heuermann using its car registration. Law enforcement apprehended the car in Chester County, South Carolina on Tuesday, Fox News reported.

A representative of the Chester County Sheriff's Office told Patch they could onlly confirm that a vehicle was apprehended, but could not confirm it belonged to Heuremann.

They also emphasized that the Chester County Sheriff's Office is assisting Suffolk County law enforcement, who are leading the case.

Police also searched Amityville storage units this week in a search for evidence, and added Heuremann's DNA to a state-wide database.

The remains of Costello, Barthelemy, and Waterman were found in December 2010 along Ocean Parkway.

Here are the other latest updates in the Gilgo murder serial case:

Family Member Speaks Out

Kimberly Overstreet, sister of Costello, said she felt grateful for a break in the case, reports said.

"It brings me peace to know that my sister is laying with my family," Overstreet told News 12."And that if my parents were here, if my sister was here, she would say 'Thank you, and I forgive him.' I forgive him and she would too. I don't know if it makes a difference to him, but it makes a difference to me, and I can move on."

See also: 'I Can Move On:' Sister Of Gilgo Beach Victim Reacts, Reports Say

Costello, was working as a sex worker and living in West Babylon at the time of her disappearance.
She had moved to New York from Clearwater, Florida, and had completed a 28-day drug rehab. She relapsed not long before her disappearance, police said.

An 'Outlier' In Serial Killing Field

Louis Schlesinger, a professor of psychology at John Jay College of Criminal Justice, told Patch that Heuermann's profile makes him an "outlier" in the field of serial killers.

“The one thing that kind of surprised me is — I'm never surprised by anything — is that [Heuermann’s] an architect,” he told Patch. He added: “The vast majority of these guys are not college graduates.”

Heuermann is the owner of the Manhattan-based RH Consulting, a building facilitator for the city's Department of Building, and helped clients navigate the construction process, and has worked in Manhattan since 1987, according to his interview with Bonjour Realty last year.

The perpetrators are “unusually unemployed, low-level, unskilled types of people,” he added.

Schlesinger wants his comments kept in perspective, as he has not completed a psychological evaluation of Heuermann, who has been placed on suicide watch at an undisclosed facility in the Suffolk County correctional facility.

See also: Things To Know About Rex Heuermann

Heurermann Worked For Donald Trump

Heuermann briefly worked inside one of former President Donald Trump's most recognizable building, according to city filings.

The Trump Organization adamantly denied that it ever hired Heuermann's architecture company for renovation of office space and plumbing changes within 40 Wall St. during 2018, according to a Department of Buildings filing first reported by TheRealDeal that features both companies' names.

See also: Gilgo Beach Serial Killer Suspect Did Work In Trump Building: Docs

A third party tenant that vacated years ago hired Heuermann's firm to perform minor architectural work in their space, said a Trump Organization spokesperson.