A 45-year-old Lebanon man was killed in a Dallas County accident at 4:25 Thursday afternoon on Route OO, 10 miles west of Lebanon. The Missouri Highway Patrol reports that a vehicle driven by Cameron W. Cromer failed to negotiate a curve, traveled off the right side of the road, overturned, and ejected Cromer from the vehicle. Cromer was pronounced deceased at the scene. He was not wearing a seatbelt.