| Micah Johnson was a member of the US Army reserve, reports said |
The gunman killed in a stand-off
with Dallas police said he wanted to kill white people, especially
officers, the city's police chief has said.
| Facebook images show Micah Johnson giving a black power salute and dressed in military uniform |
Mr Brown said the suspect had been killed when police used explosives placed by a robot to end a tense stand-off in a building where he was holed up. Before that, he had spoken to a negotiator.
"The suspect said he was upset at white people. The suspect stated that he wanted to kill white people, especially white officers."
Mr Brown added that the man had said he was not affiliated with any groups and he acted alone.
However, speaking earlier on Friday, Mr Brown had said two snipers had fired from "elevated positions", shooting some officers in the back.