HARRISBURG, Pa. (AP) – A Republican who announced his candidacy for governor last month says he is cooperating with a police investigation into an accident in which a motorcyclist was killed and that shut down the Pennsylvania Turnpike for seven hours. In a statement Friday through a spokesperson, Charlie Gerow said that he didn’t cause the accident. Pennsylvania State Police have released little information about the accident Wednesday night, saying only that it involved a motorcycle and a car that Gerow has identified as the one he was driving. A witness told Spotlight PA that Gerow drove several miles with the motorcycle stuck to the front of his car.