Sean Benschop, center, with red jacket over his head, walks with investigators as he arrives at the Philadelphia Police Department's Central Detectives Division, Saturday June 8, 2013, in Center City Philadelphia. Benschop, the heavy equipment operator with a lengthy rap sheet accused of being high on marijuana when a downtown building collapsed onto a thrift store, killing six people, turned himself in on Saturday to face charges in the deaths, police said. (AP Photo/ Joseph Kaczmarek), APTOPIX