and to answer your question on why would they have stopped him? Because he fucking shot people lol he literally walked up to the cops after he shot people and the cops didn't care. Generally in the United States, even if you're in the right, if you shoot people an investigation happens, your firearm is temporarily subdued, and you at the very least answer questions. This kid shot people, walked right past police, got in his car, drove home, and went to bed.