many came prepared. a detailed examination of the hand symbols, flags, insignia's, and patches reveals that many were conspiracy theorists, guns rights activists, anti government extremists, or members of hate groups and militias. confronting police with a baseball bat is robert gays wine. although he is dressed in full combat gear, 24-year-old robert gates why never served in the military. but he loves guns. friends at the casino where he worked in colorado know him as machine gun bobby. he -- and a legal modification that allows a semi automatic rifle to fire up to 800 rounds a minute. >> -- what's next, semi autos? >> they had already arrived in d. c. the day before the