After nearly three years of maintaining his innocence, Rex Heuermann has admitted he is the Gilgo Beach serial killer - confessing to strangling eight women whose bodies he dumped along a Long Island highway over a span of 17 years. The guilty plea reshapes a case that Suffolk County District Attorney Ray Tierney called one of the most significant criminal investigations in the region's history. Heuermann, 62, a former architect, changed his plea on April 8, 2026, inside a Riverhead courtroom while his ex-wife and daughter watched from the gallery. Everything to know about the case, below.