BATON ROUGE, LA -JULY 09: Baton Rogue police keep watch while others arrest protesters they've dragged from the crowd into the street on July 9, 2016 in Baton Rouge, Louisiana. Alton Sterling was shot by a police officer in front of the Triple S Food Mart in Baton Rouge on July 5th, leading the Department of Justice to open a civil rights investigation. (Photo by Mark Wallheiser/Getty Images)