The person who said that was a cop. He's right, but that defense only works for cops; not regular civilians.I guess from now on the protest marches belong to the people with the guns. The rest of us better stay home in case we get between someone like Kyle and someone wielding a plastic bag.
About twenty years ago a cop friend of my brothers told him, "If you ever kill someone, just say you were afraid for your life and you'll get off." I guess he was right.