Sad but true.
I am white and have never had an encounter with the police where the police behaved poorly. In a couple of cases they may have been indifferent or bored to my comments, but generally they were polite, professional and did nothing to tarnish the badge they wore.
My cousin, who is as equally law abiding as I am, was born, raised and lives in Indiana, is educated and a professional. He's also half South American and to most Hoosiers looks "Mexican" or maybe even black. If you squint and use your imagination and your prejudices you might even see someone of Middle Eastern descent. He has lost track of the number of times he has been stopped for broken tail lights, broken license plate lights, driving slightly left of center (he doesn't drink or use drugs and has never even smoked a cigarette so he never driven impaired), driving 9 mph or less over the speed limit, driving UNDER the speed limit (looking for an address) or rolling through a stop sign in a residential neighborhood after midnight (his neighborhood 2 blocks from home and he's a sportswriter and was coming home from covering a high school basketball game 2 hours from his residence).
Anyone who doesn't believe race plays a factor in what happens between the police and the populace either suffers from an extreme case of rectal-cranial inversion, or they are bigots who don't give a sh!7 that some black guy got blown away. He was probably guilty of something anyway.