If that shot of the person's face is from a video of the incident that person is not him. Yes, there's lossy compression applied but that don't make someone's nose into a completely different nose.

Healthy skepticism is good but the only thing worth questioning here is if that shot is in fact real–something that could only be evaluated if they released the tape. But since they're not exactly going out of their way to do that I can only assume that it would be against their interests. Until they produce it I'll have to take his word at face value.