The only known assailant in the shooting deaths of five Dallas police officers has been identified as a 25-year-old former member of the U.S. Army Reserves. Before he was killed by a robot-delivered bomb, Micah Xavier Johnson told police he was acting alone and wanted to kill white people, especially white police officers.
In wake of the death of Philando Castile in Minnesota, NPR's Ari Shapiro talks to Gwen Carr. She is the mother of Eric Garner, whose controversial death during a police arrest in 2014 sparked protests in New York City.
A sniper opened fire at a protest march in Dallas overnight, killing five law enforcement officials and wounding others. The gunmen told police before he was killed that he was working alone, but investigators are continuing to comb through the gunman's electronics and background to determine if that is actually the case.