Rex Heuermann, 62, entered the pleas in a courtroom packed with reporters, police and victims' relatives, some of whom wept as he detailed his crimes for the court. He will be sentenced to life in prison without the possibility of parole at a later date.

The killer, who came to be known as the “Phantom of Heilbronn,” was actually the result of a critical forensic error.

"Serial Killer: The Exhibition" will now run through May 31 at Pullman Yards, drawing thousands of visitors, long stays, and more than 20 reported fainting episodes.

The notorious serial killer pleaded guilty to eight deaths, and he made a chilling revelation during the court hearing. The Suffolk County DA asked Heuermann, a married architect and father, how he killed the women. “Strangulation,” he responded, according to CNN. But that’s not all.

The official synopsis for the episode of Sheriff Country reads: “During Edgewater’s Blood Moon Festival, Sheriff Mickey races to stop a suspected serial killer targeting young women. Meanwhile, a shocking discovery propels Deputy Cassidy into the crosshairs of the case.”

Long Island Serial Killer Rex Heuermann is expected to detail the seven murders he’s charged with when he amends his plea, Us Weekly can exclusively report