Comment: Killing an unarmed person criminal or not is not and never justifiable under any and all circumstances using the alibi of Self Defense.  Killing should never even be contemplated unless and until the Police has shot to disable. The Police should have a policy of Shoot to Disable not Shoot to Kill when facing situations involving violent but unarmed civilians.  There are parts of the body that a policeman learns in Self-Defense martial art that can disable a person - not kill. Police have training in shooting accuracy. Which makes it imperative and no excuse not to shoot to disable instead shoot to kill.