VIDEO : Details Emerge In Death Of 'Walking Dead' Stuntman

(AP) ? A stuntman fatally injured during production of "The Walking Dead" fell head-first onto concrete about 22 feet (7 meters) below after appearing to try to grab a railing to stop his fall, an assistant director told authorities. Coweta County coroner Richard Hawk has said John Bernecker, 33, was pronounced dead at 6:30 p.m. Bernecker died from injuries suffered in a fall some five hours earlier on the hit show's set in Senoia, about 35 miles (56 kilometers) south of Atlanta, Hawk said.