Brown was chief during the 2016 shooting of Dallas police officers that killed five police officers and injured nine others and two civilians . He made the choice to use C-4 explosive delivered by a robot to kill the shooter , Micah Xavier Johnson , who was heavily armed and secured behind a brick corner with no safe way for police to rush Johnson or reach him with a sniper . The killing of Johnson was the first time in United States history a robot was used by police to deliver lethal force against a suspect
2016 shooting of Dallas police officers
2016 shooting of Dallas police officers
David Brown (police officer)