Confessed Gilgo Beach serial killer Rex Heuermann has agreed to work with the FBI's Behavioral Analysis Unit.
The shocking case came to an end Wednesday when the 62-year-old Massapequa Park resident appeared in court and pleaded guilty to killing eight women.
Officials confirm that he will cooperate with the FBI as part of his plea deal.
Retired FBI Special Agent Richard Kolko shared his expertise with News 12.
“These are the people that everybody likes to call profilers. These are the academics, the researchers, they do a lot of very valuable work at the FBI that they’re able to share with law enforcement agencies around the country and in fact around the world," he said.
Kolko said the profilers will want to know everything.
“What made him deviate from probably living a normal life, raising a kid, being married, living on Long Island… and then all of a sudden become a deviant serial killer. Where did he make that turn?” Kolko said.
The Behavioral Analysis Unit was established in 1972 to consult experts on "different, unusual or bizarre cases."
The department works in tandem with federal, state and local law enforcement partners.
They cover offenses such as terrorism, cybercrime, serial murder and other acts of violence.
Their work involves a variety of investigative strategies aiming to obtain further insight into the psychology of an offender.
According to the FBI, this includes analyzing "motivation, victim selection and sophistication levels."
FBI agents associated with the unit in the 70s assessed famous killers such as Ted Bundy.
MORE: Suffolk DA details how 'Gilgo Beach serial killer' Rex Heuermann lured his victims to their deaths