Gilbert was reported seen running through Oak Beach, pounding on the doors of homes in Brewer's neighborhood.
Around this time, Gilbert called 9-1-1, saying that "they were trying to kill her".
On December 15, 2016, the attorney for Gilbert's family said that an escort who had conducted business with former Suffolk County Police Chief James Burke claimed he was connected to the Long Island murders.
In November 2016, Burke had been sentenced to 46 months in federal prison, along with three years of supervised release, for beating a man who stole a duffel bag filled with sex toys and pornography from his vehicle.
On December 10, 2015, Suffolk County Police Commissioner Tim Sini announced that the FBI had officially joined the investigation.
The day before, former Police Commissioner James Burke, who resigned in October, had been indicted for alleged police brutality and other issues.
The victims were found along the Ocean Parkway, near the remote beach towns of Gilgo and Oak Beach in Suffolk County, and the area of Jones Beach State Park in Nassau County.Burke had pleaded guilty in February 2016 to charges of a civil rights violation and conspiracy to obstruct justice.On September 12, 2017, Suffolk County prosecutor Robert Biancavilla said that John Bittrolff, a Suffolk county resident, was a suspect in at least one of the LISK murders.Suffolk County Police Commissioner Richard Dormer said, "Four bodies found in the same location pretty much speaks for itself. We could have a serial killer." A few months later, in late March and early April 2011, four more bodies were discovered in another area off the parkway, near Oak Beach and Gilgo Beach.Suffolk Police expanded the search area up to the Nassau County border, looking for more victims. Kevin Smith of the Nassau County Police Department said that his office will "further explore and investigate any criminal activity which may be in close proximity to the recently discovered human remains found in Suffolk." Smith also said that Nassau County Police would be coordinating with Suffolk County and New York State Police on the investigation.
(The match had been made through DNA submitted by his brother, convicted in 2013 in an unrelated case.) A married carpenter, Bittrolff had lived in Manorville, three miles from where the torsos of LISK victims Jessica Taylor and "Jane Doe No. (See victims in section below) Biancavalli said that Bittfolff was a hunter who was said to enjoy the killing of animals.