I agree 100% that what the 'officer' did was fucked up, but what the hell is rioting going to solve? Burnin down stores and flippin over cars and stealin shit in your own community. That's making a fucked up situation worse, and soiling the memory of the man who died, IMO.
Fuck a riot, do something POSITIVE. Donate to a fund to help out his daughter, become involved with the youth in your community. But causing mayhem isn't going to solve a goddamn thing.