Americans have expressed outrage at Wednesday’s police shooting of Philando Castile, an African-American man, which happened in St. Paul, Minnesota, during a traffic stop for a broken tail light. Castile was shot in front of his girlfriend Diamond Reynolds and their 4-year-old daughter, who were in the car. Reynolds used Facebook Live to stream video of the aftermath of the shooting. The graphic video shows Castile bleeding and groaning in pain while the officer who shot him curses and continues aiming his gun at the victim.