“I’ve seen the video...he shot the guy about a half dozen times. From what I saw one shot would have been justified...maybe even two. But it seemed to me that the guy went a bit overboard.”
It is not the number of shots that is important. The shooter was not going to wait to see if the perp turned and started shooting him and others. He took out an immediate threat. He didn’t have to wait or count his shots.
Correct plus the fact that shooting a perp puts the shooter under extreme stress. He should not be expected to stop and think “Yeah, I incapacitated him, that’s enough.”