We have more information about a crash involving a cement truck Monday morning. According to a family member, Dennis Glascock, 57, of Joshua Tree, was driving a cement truck on Highway 62 near mile marker 63 shortly after 6 a.m. when the truck drifted onto the shoulder into soft sand and the truck overturned. Glascock was able to get out of the truck on his own, and a passer-by stopped to help. At that time, Glascock began experiencing chest pains and passed out. Glascock was taken to the Robert E Bush Naval Hospital on board the Twentynine Palms Combat Center where he was pronounced dead on arrival.