The mother of the man who gunned down former Pantera guitarist "Dimebag" Darrell Abbott and three others during a concert said her son was discharged from the military because he suffered from paranoid schizophrenia. Mary Clark told Columbus television station WCMH on Wednesday that her son, Nathan Gale, was released from the Marines in 2003 after the military diagnosed the disorder. Gale's rampage ended last week when an officer shot him to death. Clark, who asked... (GunPolicy.org)