RAVENNA, Ohio (AP) – Troopers in Ohio say a Wisconsin truck driver is dead after his rig started rolling at a rest stop and pinned him against another truck.  The State Highway Patrol says the accident happened Saturday afternoon at a rest area along Interstate 76.     Troopers say that 57-year-old Frank Shackelford, of Lake Geneva, Wisc., got out of his truck but didn’t put on the emergency brakes.  The truck rolled forward as he was walking between the cab and the back of another truck.