Rex Heuermann, the man police allege is the Long Island Serial Killer, may have kept trophies of his victims, according to authorities. “Whatever it is, whether it’s something that he kept intentionally or something that he didn’t even realize he kept, we hope that somewhere in that house it’s located and we could find it," Suffolk County District Attorney Ray Tierney tells PEOPLE. Subscribe to People ►► http://bit.ly/SubscribetoPeople WATCH: Cover Stories►► • Playlist Cast Reunions ►► • Cast Reunions Features ►► • The PEOPLE Interview Digital Covers ►► • Digital Covers | PEOPLE Double Talk ►► • Double Talk | PEOPLE Hollywood at Home ►► • Hollywood at Home PEOPLE Weddings ►► • PEOPLE Weddings PEOPLE in 10 ►► • Playlist ABOUT: PEOPLE remains the trusted authority at the center of pop culture. The PEOPLE brand features a unique mix of breaking entertainment news, exclusive photos, video, unparalleled access to the red carpet, celebrities, and in-depth reporting on the most compelling newsmakers of our time. CONNECT Web: https://people.com Facebook: / peoplemag Twitter: / people Instagram: / people TikTok: / people Gilgo Beach Murder Suspect May Have Kept Trophies of Victims | PEOPLE / people #RexHeuermann #GilgoBeach #PEOPLE