What is your point? This isn't a cop that killed some kid. It doesn't compare to events where people rioted. Nobody rioted after Trayvon Martin.
The only time I can think of where a citizen got away with killing a black and people rioted was the Korean store owner in LA and they had that murder on camera. There is no event that I can think of that compares to this one where people rioted.
Even if you are right, your statement is completely out of left field and the implication is that your point is "See, white people are better. We don't riot." and that makes you a total douche.