Rex Heuermann didn't just kill eight women. He wrote down how to do it — and then revised the document between murders.

For seventeen years, the Long Island Serial Killer left women along Ocean Parkway, fifteen minutes from his house in Massapequa Park. For thirteen more yearsafter their bodies were found, Suffolk County didn't catch him — despite a burner phone he bought with his own credit card. In April 2026, Heuermann pleaded guilty to seven murders and admitted to an eighth. In June, he was sentenced to life.

This episode is about the piece of evidence that makes this case unlike almost any other: a deleted Word file recovered from a hard drive in his basement, written in all capitals, containing checklists, a disposal procedure, and a section of lessons learned for next time. On this show we usually have to infer intent. Here, he typed it.

We cover the 911 call from Shannan Gilbert that cracked the case open, the discovery of the Gilgo Four, the taunting phone calls made to a fifteen-year-old girl, the police chief who kept the FBI out of the investigation and went to federalprison, and the eight women whose names deserve to be said: Melissa Barthelemy, Maureen Brainard-Barnes, Megan Waterman, Amber Lynn Costello, Jessica Taylor, Valerie Mack, Sandra Costilla, and Karen Vergata.

Intent doesn't lie. People do.

Content warning: serial murder, strangulation, sexual violence, and discussion of theexploitation of sex workers.

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