Explain to me as a European why what's happening in Ferguson is something I should know. It seems like a national problem that affects the United States, not the entire world. Plus from the little things I've seen of it I'm not even sure that cop was in the wrong to shoot that man. He threatened him with his life and punched him in the face (or was trying to), he feared for his life and unfortunately shot him. No matter what you may think, when a person that carries a gun is put into a life threatening situation they may actually end up using that gun to defend themselves. I don't think this cop would have hesitated to shoot a white person if that person had put him the same situation. The protests and and riots seem to be more of a response to bigger problems in the US' society, which are quite large. Ferguson was just the tipping point. All these riots and protests would never have happened in the Netherlands.
Except, even as a European, I know that the case you just presented above, as per the officer's own account, is deeply suspect. The version of what happened is not believed by everyone. Even deeply conservative US politicians/attorneys have questioned how the prosecutor (who has never indicted a policeman before despite being on several case against them) handled the grand jury.