a serial pedophile in florida has been arrested for molesting at least seven young children in his apartment complex just 18 months after he was released from prison by officials who voted to give him a second chance .
michael shepard , 35 , allegedly molested at least seven children within 18 months of his release .
shepard , who has a history of molesting children dating back 20 years , served 15 years in prison for molesting two boys , age six and nine , at a roller rink in 1998 .