Nicknamed the Unicorn Killer because his last name means "one horn" in German, Ira Einhorn jumped bail and evaded arrest for 23 years, but eventually the "she went to the neighborhood co-op to buy some tofu and sprouts and never returned" story fell apart. Ira Einhorn was on stage hosting the first Earth Day event at the Fairmount Park in Philadelphia on April 22, 1970. Seven years later, police raided his closet and found the "composted" body of his ex-girlfriend inside a trunk... After 23 years, he was finally extradited to the United States from France and put on trial....