Frazier Glenn Cross, also known as F. Glenn Miller had a long history of racism, violence, and criminal behavior before he went on an apparent killing spree in Overland Park, Kansas over the week end. The former head of the Carolina Knights of the Ku Klux Klan and the White Patriot Party was involved in the Greensboro Massacre in 1979, when five people were killed and several others were injured by KKK and Nazi Party members who opened fire on counter-demonstrators.
Miller had been arrested multiple times for a variety of criminal offenses including criminal contempt for defying a court order by running a paramilitary organization, possessing hand grenades, and making threats to assassinate blacks, Jews and homosexuals. His lengthy history of criminal behavior and his activity in the White Nationalist movement indicated a hateful mind and a propensity to commit violence on behalf of his racist and anti-Semitic ideology. Assuming he is guilty of the weekend shootings, that propensity was unveiled with lethal consequences over the week end.