Charles Dwayne Bell, age 34, of Harrisburg, Mo., was reported missing to the Boone County Sheriff's Department on September 18, 2011. He was last seen by friends in northern Boone County, Missouri, on Sept. 15, 2011, on his red 2009 Ducati motorcycle bearing Missouri license BP4GU. He was last seen wearing jeans and a t-shirt. There has been no known contact with or sightings of Mr. Bell since September 15, 2011. An extensive investigation has been underway since September 18, but Mr. Bell's whereabouts remain unknown.