The one that really confuses me here (maybe I just missed it) is I don't remember hearing squat about the police officer's physical injuries until today. If that information had gone out immediately I think it would have done a lot to diffuse the situation, making it much more obviously a matter of self defense.
Why would they hold onto that information so long? It's almost like they encouraged the protests and violence with a questionable story - and then days later it's like, oh, we had the proof it really was self defense. They knew day one.