Sorry, but stereotypes are stereotypes for a reason.
I would have done the same thing whether the person was white, black , yellow, or fucking flourescent pink. The only reason we are talking about it right now is because the person was black. If they were white, it never even would have hit the local newspaper. Sorry if that offends you, but it's the dead honest truth, and if you don't see it that way, then you need to get a clue.