Dallas gunman killed by bomb robot, 'wanted to kill officers,' officials say

Police used a "bomb robot" early Friday to kill a gunman who fatally shot five police officers and wounded seven others in downtown Dallas, saying he "wanted to kill white people," officials said. The end to the standoff came several hours after a suspect began firing during a protest over recent police shootings in Minnesota and Louisiana and then holed up in a garage, officials said. "We cornered one suspect and we tried to negotiate for several hours," Dallas Police Chief David Brown said during a Friday morning news conference, but "negotiations broke down" and turned into "an exchange of gunfire with the suspect." The suspect was identified as Micah X. Johnson, 25, a former Army reservist and resident of the Dallas area, two U.S. law enforcement officials said. Johnson had no known criminal history or ties to terror groups, the official said, and has relatives in Mesquite, Texas, which is just east of Dallas.The official said federal agents were assisting Dallas authorities in the investigation.