In any case where police shoot someone, there should be federal oversight, or some elected third party committee, investigating the incident. Leaving it up to police is a joke. Some type of Internal Affairs committee is not enough. It needs to be completely independent of the LE agency. When a citizen shoots and kills someone, we don't leave it up to him to hire his own investigators, and then make decisions whether or not to press charges based on his conclusions. When a life is lost, transparency is priority.