Gilgo Beach murders: How Rex Heuermann tried to plan the 'perfect crime' Admitted Gilgo Beach, New York, serial killer Rex Heuermann confessed to the murders of eight women last week, bringing resolution to a 17-year killing spree that terrorized Long Island. "If I could speak to Rex face-to-face, I would tell him that he has no heart, no soul, he is a monster," Liliana Waterman, whose mother, Megan Waterman, was among the victims, told ABC News.