So post an example of such an occurence. I've come as close as, I believe, possible. An unarmed white man shot by a black cop where the black cop was exonerated and I (and most would) agree with that outcome. Dealing with a hypothetical is not only difficult, but impossible to argue.
But... If the exact same situation occured with just the race of the actors changed, I would still support the outcome that was achieved - exoneration of the black police officer and condemnation of the white executive - in your hypothetical.
Many of those currently condemning the cop woudl not only not know about it, but would agree with the decision since the emotional response would be very different.