Got away with it?! This has to be one of the most ignorant statements I've read on here in a while. He didn't get away with anything. He has to live with the fact he killed someone for the rest of his life, and it was a good guy at that. Thankfully your opinion nor that of the media count for anything in this matter.Oh wow THE COPS GET AWAY WITH IT AGAIN.
A full investigation was conducted and the officer was found to have acted appropriately base on the facts available to him at the time. Graham v Connor is the US Supreme Court case that sets the standard for use of force. You can read it here:
https://supreme.justia.com/cases/federal/us/490/386/
Essentially it states, an officer will not be judged in 20/20 hindsight, but from an on scene perspective using the fact available to the officer at the time of the use of force. It set the objective reasonableness standard, would a similarly trained and experienced officer reach the same or similar conclusion based on the fact available at the time.
You are dispatched to a shots fired call, people are dead or dieing, and when you arrive on scene you see a guy holding a rifle. Stopping to give commands could very well mean he shoots you, so you shoot him. Good shoot from a legal stand point. Finding out after that he was not the bad guy and was indeed the guy who stopped the bad guy...I cannot imagine what he has to live with now.
But to say he got away with it is simply wrong and ignorant of case law and the facts of this case.