FORT WORTH, Texas (AP) — A would-be robber tried to shoot a startled diner at a McDonald's in Fort Worth, but his gun jammed, police and witnesses said. Jestin Anthony Joseph entered the restaurant Tuesday night, asked for a cup and then pulled out a gun, which he pointed at customers while demanding their keys. Surveillance video released by Fort Worth police shows Joseph point the gun at a man and his young son at the counter, then pull the trigger.