 was eastbound when the vehicle abruptly drove off the roadway. The patrol says the truck then rolled and ejected the driver. Grudel was taken by ambulance to Mercy Hospital where he was pronounced dead. The patrol says Grudel was not wearing a seatbelt at the time of the accident. The Pottawatomie County Sheriff's Office assisted the patrol at the scene. A suspect is in custody following an altercation in Red Oak.