How LISK Was Finally Arrested — The Gilgo Beach Killer Caught After 13 Years

Thirteen years of dead ends in the Gilgo Beach case. Every suspect cleared. Then a pizza box changed everything.

Today we break down exactly how LISK—the Long Island Serial Killer—was arrested. The Suffolk County task force, the Chevrolet Avalanche tip, the cell tower evidence, the DNA breakthrough, and the pizza crust that allegedly tied it all together.

The investigation stalled for years after bodies were discovered along Ocean Parkway in 2010 and 2011. Then a new task force formed in February 2022. Six weeks in, an investigator noticed an old witness statement about an "ogre-like man" driving a Chevrolet Avalanche.

A database search returned one name: Rex Heuermann.

Cell phone records allegedly connected the alleged Gilgo Beach Killer to burner phones in every instance. But investigators needed physical evidence.

Enter whole genome sequencing. This cutting-edge technology can extract DNA from degraded samples traditional testing couldn't use. A California lab applied it to hairs found on the Gilgo Beach victims. According to prosecutors, hairs on six of seven victims linked to LISK or his immediate family.

But they still needed his DNA directly.

May 2023. Heuermann discards a pizza box outside his Manhattan office. Investigators retrieve it. DNA from the crust matches a male hair found on Gilgo Four victim Megan Waterman. A profile found in only 0.04% of the population.

July 13, 2023. The alleged Long Island Serial Killer arrested. Twelve-day search of his Massapequa Park home. Fifty-eight hard drives. Over two hundred firearms. The planning document that prosecutors say supports the Gilgo Beach case.

The defense has challenged the DNA technology as "magic." Judge Mazzei rejected those challenges. The LISK trial happens September 2026.

Seven women. Thirteen years. Finally, a trial.

Part 5 of 5.

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