A man fired from his job yesterday allegedly beheaded a coworker Friday in Moore, Oklahoma and stabbed another. Alton Nolen, 30, was shot by a coworker and taken into custody by police at the food-processing facility where he had worked. Colleen Hufford, 54, was beheaded with a knife apparently used to cut vegetables. After killing Hufford, police said Nolen attacked Traci Johnson, 43. Mark Vaughn, chief operations officer at Vaughn Foods, confonted Noel and shot him. "There's no doubt Vaughn saved Traci Johnson's life," a police sergeant said. Vaughn is a reserve officer in the Oklahoma County police. “They have this ISIS thing on their minds and now this guy has brought it to America,” a spokesman for the Islamic Society of Greater Oklahoma City said. There is no official motive given for Nolen's attacks. Several years ago he was convicted on drug-related charges and of assaulting a police officer.