Eerie Crime Scene Photos: Disturbing Details About Suspected Gilgo Beach Serial Killer Rex Heuermann — 'A Demon That Walks Amongst Us'

An arrest was made in the notorious Gilgo Beach murders and officials held a press conference giving details about the prime suspect Rex Heuermann.

As Front Page Detectives previously reported, Heuermann, 59, was arrested at his Massapequa Park home by a special task force focusing on the infamous murders.

The Long Island man has been on the radar of authorities for at least a year and was arrested after allegedly being linked to the crimes by DNA found on pizza, according to officials.

According to NBC News, Heuermann broke down in tears in front of his lawyers and insisted he was innocenct.

Heuermann appeared in court today and was formally charged with three counts each of first-degree murder and second-degree murder in connection with the deaths of Melissa Barthelemy, 24; Megan Waterman, 22; and Amber Costello, 27, according to NBC News.

These victims are three of the “Gilgo Four,” whose remains were found in December 2010 in Gilgo Beach.

Heuermann was not charged with crimes in connection with the disappearance and murder of 25-year-old Maureen Brainard-Barnes, the fourth member of the “Gilgo Four.”

However, officials said he is the “prime suspect in her death” and the investigation is ongoing, NBC News reported.

Heuermann pleaded not guilty to all the charges before he was ordered held without bail, authorities said.

At a press conference, Suffolk County Police Commissioner Rodney Harrison called Heuermann a “demon” and thanked investigators for their work that ended in the suspect’s arrest.

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“Ladies and gentlemen, Rex Heuermann is a demon that walks amongst us, a predator that ruined families. If not for the members of this task force, he would still be on the streets today," Harrison said.

According to officials, Heuermann was still seeking out sex workers, which raised concerns that he could kill again.

Suffolk County DA Raymond Tierney told reporters, “This individual was a person that continued to patronize sex workers at all hours of the night. He continued to use fictitious email addresses, fictitious identities, burner phones.”

Tierney added, “So as we worked through the case and we got closer and closer and we built the evidence, suddenly the balance tips in favor of public safety. So I think we all wanted, as a task force, to continue it. But I think we collectively thought it was time to strike that balance and take him off the streets."