Updated April 2, three:35 p.m. ET: Shain Gandee, a celebrity on MTV’s “Buckwild” truth convey, and two others in a truck he was using in died of carbon monoxide poisoning, the Kanawha County (W.Va.) Sheriff’s Place of work informed TODAY.com on Tuesday.Gandee, 21, his uncle David Gandee, forty eight, and buddy Donald Myers, 27, have been found in a 1984 Ford Bronco that was once in part submerged in deep mud with the exhaust pipe c…