Damiene Iriarte, 26, was picked up naked behind a building in Brooklyn with a bleeding penis. Apparently he had bit off the tip of his own member. Iriarte is a convicted pedophile. "How he did it? Limber, I guess. Not the work of a sane mind," a police source told the New York Daily News. "Sex offender found nude, self-mutilated; bit tip of own penis off: cops"