Yeah, this one is pretty damn bad. The good news is that he'll most likely never be a cop again, and even better news is that the man who got shot is recovering.
This all being said, there's still a lesson to be learned: If you're going to comply with a LE's directive (if you don't feel you need to then that's a totally different discussion, depending on the situation), it's a good idea to announce any of your movements...just like flying a crew aircraft, communication is key. So if you need to get into your glove box to pull out your registration, tell them that first. I am by no means giving this cop a pass (I hope he serves a nice sentence), but at the same time just because I'm not being aggressive towards an officer while making sudden movements, doesn't mean I want to get shot. Just my $.02
Here are a couple examples of people not being so innocent when being pulled over.
https://www.youtube.com/watch?v=8ililCtp0Bk