You mean like grand juries, county attorneys, DCI and the suspects 5 lawyers? Trust me they’re plenty of eyes when we have to use deadly force. It’s not as fun as some make it out to be.
I’m sure of the officers did miss more than they hit. That’s normal and the reason why you see cops shooting more than the untrained person thinks is necessary. The officer did the right thing initially. He used deadly force until the threat was stopped. Where he probably errored was when the suspect got up he didn’t continue to shoot until the threat was again eliminated. That is where the seconding guessing things almost cost him.