Motives for shooter
An article on WBIR quoted results from the search warrant:
“Adkisson stated that he had targeted the church because of its liberal teachings and his belief that all liberals should be killed because they were a ruining the country, and that he felt that the Democrats had tied his country’s hands in the war on terror and they had ruined every institution in America with the aid of major media outlets.”
Other articles (see UU World and WATE) also mention Adkisson’s dislike for liberal media, the liberal movement in general, and also homosexuals. (Interesting that this isn’t mentioned on WBIR’s articles.)