Chris Rock summed up the black experience in the United States kind of perfectly during his HBO special Never Scared more than a decade ago: “If you’re black, you got to look at America a little bit different,” he joked, stone-faced. “You got to look at America like the uncle who paid for you to go to college but who molested you.” Since then, that “generous” uncle has moved from molesting to killing, with the list of victims growing by the day: the Charleston 9. Freddie Gray. Michael Brown. Rekia Boyd. Eric Garner. Tamir Rice. John Crawford III. Yuvette Henderson....