well they end up still shooting down him anyways. if the cop shoot earlier before he did more harm to the victim, the victim might have a chance to live.
[Peter mode]: There must be a reason for Chinese cops to not save the attacked & injured Chinese traffic cop. The situation must be too dangerous, it is not worth for more men to go down. I would have been there & walk up to the attacker & talk some sense into him, to get him to surrender