Shootings, both police and civilian, are not generally judged by the facts after the incident. Its the facts and beliefs before the incident that matter. Yes sometimes mistakes happen, but I promise you, if your ever involved in a shooting, you will want it that way too. Just imagine you shoot someone who pulls a gun on you, it turns out to be a realistic looking toy gun. That toy gun wasn't going to hurt you, but you didn't know that, you believed you were in serious jeopardy. The facts after the shooting say you shot someone who wasn't going to harm you. If the facts and beliefs before the shooting led you to believe you where going to die(or be seriously hurt, or whatever burden in your state), then you are justified in what you did.
