A one vehicle accident in Shelby County left a Center man dead last night. DPS troopers say 66-year-old Roy Horton was driving northbound on highway 87 just south of Shelbyville. At around ten o'clock his Dodge Dakota truck left the roadway and went into a ditch. Horton was pronounced dead at the scene just ten minutes later. At this time troopers aren't sure why he left the road, but they said he was not wearing his seatbelt.