Roxane Gay on the murder of Alton Sterling and America’s continued racist violence: “It’s overwhelming to see what we are up against, to live in a world where too many people have their fingers on the triggers of guns aimed directly at black people. I don’t know what to do anymore. I don’t know how to allow myself to feel grief and outrage while also thinking about change. I don’t know how to believe change is possible when there is so much evidence to the contrary. I don’t know how to feel that my life matters when there is so much evidence to the contrary.”