Gilgo Beach serial killer suspect Rex Heuermann, who is already facing murder charges in the deaths of six women, has been charged with the slaying of Valerie Mack, whose mutilated remains were found more than two decades ago.
The former New York architect, 61, was handcuffed and shackled as he appeared before Suffolk Supreme Court Justice Timothy Mazzei in Riverhead Tuesday, where he was arraigned Tuesday on a new charge of second-degree murder in Mack’s death.
