I'm sure a lot of it is self invented hype, but not this:

In 1988, Russo killed a man inside his Las Vegas nightclub. When he tried to intervene to stop a man from harassing a female patron, the man stabbed him with a broken champagne bottle. Russo, a legal carry owner, pulled his gun and shot him in the head. The man was a 30-year-old Cuban national. Russo was not charged with the killing because it was ruled a justifiable homicide by the Nevada District Attorney's Office.