A Boonville man is dead following an accident on Highway 98 east of Boonville around 10:25 Saturday morning. The State Highway Patrol says 35-year-old Nathan Mann was killed when his dump truck went off the right side of the road, came back on to it, slid across the center and overturned into the path of another dump truck. The other driver, 52-year-old Leroy Williams of Sedalia, had minor injuries and was taken to Columbia.