Gilgo Suspect Believed To Have Killed At Least 1 Victim In Massapequa Park Home: Report

MASSAPEQUA PARK, NY — Accused Gilgo Beach serial killer Rex Heuermann is believed to have killed at least one victim in this Massapequa Park home, law enforcement sources told CBS News.

Heuermann reportedly lives at the First Avenue home with his wife, stepson, and daughter.

Authorities confiscated a Chevrolet Avalanche from the home this week, according to reports.

A witness who is believed to have seen Heuermann told police how Costello had tricked him out of money and that they saw him get into a Chevrolet Avalanche, which was later traced to Heuermann by its car registration, according to Heuermann's bail application.

Heuermann is believed to have picked up Costello the second and final time in the same car.

CBS sources also confirmed investigators are trying to determine whether Huermann is connected to other unsolved murder cases in the U.S. Suffolk investigators are coordinating with other law enforcement agencies in Atlantic City, New Jersey, to see if Heuermann is linked to any unsolved killings that happened there, the outlet reported.

The Eastbound Strangler is believed to have killed four women, also in the sex trade, who were found buried in a drainage ditch in Egg Harbor Township in 2006, ABC Action News reported.

A possible link between the two cases was studied in 2011, but investigators at the time ruled it out, ABC News reported.

And authorities are also investigating other links between Heuermann and other cold cases, in Las Vegas and South Carolina. Read more: Las Vegas Police Probe Possible Ties To Accused Gilgo Killer.

Suffolk police declined comment.

Heuermann was charged last Friday with six counts of murder in the deaths of Amber Lynn Costello, Melissa Barthelemy, and Megan Waterman, whose remains were found in 2010 along Ocean Parkway.

He is the prime suspect in the death of Maureen Brainard-Barnes.

All four of the women were sex workers.

Since 2010, at least 11 sets of remains have been found, including a toddler and an Asian male. At least four of the killings included strangulation, and two showed signs of blunt-force trauma.

The cause of death remains inconclusive for some victims.

The news comes on the heels of Heuermann's wife filing for divorce.

This story will be updated. Check back later.