The man who shot former Pantera guitarist "Dimebag" Darrell Abbott and three other men to death at a nightclub was obsessed with the popular heavy metal band and made bizarre accusations against it, a onetime friend said in reports published Friday. Jeramie Brey said gunman Nathan Gale once showed up at a friend's house saying he wanted to share songs he had written. The pages of lyrics were copied from Pantera, but Gale claimed he had written them, Brey said. "He was off his rocker," Brey told The Columbus Dispatch. "He said they were his songs, that Pantera stole them...