The Southern Poverty Law Center, a civil rights organization that tracks hate groups, said suspected shooter Frazier Glenn Cross has been known to them for years under the aliases Glenn Miller or Frazier Glenn Miller and that he is the former Grand Dragon of the Carolina Knights of the Ku Klux Klan.
Cross quit high school and became a member of the elite Green Berets, serving two tours in Vietnam. However, he was forced to retire in 1979 because of his Klan affiliation, according to the SPLC.
Later he became active in a neo-Nazi group called “The Order” that advocated violence against Jews and African Americans, the SPLC said.