Speaking shortly after the shootings of Sterling and Philando Castile , President Barack Obama did not comment on the specific incidents . Obama called upon the U.S. to " do better " . He also said " Americans should feel outraged at episodes of police brutality since they 're rooted in long-simmering racial discord . " On July 7 , a protest was held in Dallas , Texas , relating to this shooting of Sterling and Castile on July 6 . At the end of the peaceful protest , Micah Xavier Johnson opened fire in an ambush , killing five police officers and wounding eleven others including two civilians . Johnson was then killed by a robot-delivered bomb
opened fire in an ambush
2016 shooting of Dallas police officers
Shooting of Alton Sterling