We now know some of their names and how they died. Oscar Grant. Eric Garner. Michael Brown. Laquan McDonald. Tamir Rice. Walter Scott. Freddie Gray. Sandra Bland. Alton Sterling. Philando Castile. Stephon Clark. Atatiana Jefferson. Breonna Taylor. Daniel Prude. Antwon Rose II. Rayshard Brooks. Andre Hill. Daunte Wright.