A Sandston-area man was found dead at his home Tuesday, and Henrico County police have charged his stepson with killing him. Cecil Colley, 71, was found at about 8 a.m. on the kitchen floor of his house in the 5600 block of Old Elko Road by a co-worker, Henrico police Lt. Doug Perry said. Colley had “obvious signs of trauma to his body,“ Perry said.