I think he's guilty. People who have that kind of knowledge and training know what appropriate use of force is. If I killed somebody under those circumstances, I'd be guilty too. I think the problem is the excessive use of force. You can easily get caught up in the moment, adrenaline is going, I get that. But if you kill somebody then you have to face some kind of consequences. This wasn't like a fist fight where somebody got hit in the head and died accidentally. This was a guy who had already subdued somebody he felt was a threat, and held onto his neck in a choke for too long and killed him. It wasn't premeditated, it doesn't sound like he was a particular sort to be an asshole, he just got caught up and unfortunately he killed somebody. I think the charges he's facing are appropriate.