This is racism in its original meaning -- an irrational hatred for any and all members of a particular race, to the point of torturing and murdering one of them. It is not the moral equivalent of shooting a member of that race while they are physically attacking you with the intent of doing great bodily harm -- as in the George Zimmerman - Trayvon Martin case.
However, some people cannot make the distinction -- and I would surmise that "some people" includes the majority of black Americans. Take fabulously wealthy and successful Oprah Winfrey, for example. She can't see any difference between the murder of Emmett Till and the regrettable but justifiable homicide of Trayvon Martin. She said yesterday:
"Trayvon Martin parallel to Emmett Till. Let me just tell you: In my mind, [they’re] same thing," she said. "But you can get stuck in that and not allow yourself to move forward and to see how far we’ve come."Oprah, dear, if in your mind the two cases are identical, then you don't have a mind -- or much of one, anyway.