Dallas Ambush: One Week Later

One week ago, an armed ambush at a demonstration in downtown Dallas left five police officers dead and seven others wounded. Two civilians also were hurt.

Suspect Micah Johnson would tell SWAT negotiators that he wanted to kill as many white officers as possible. After refusing to surrender, Johnson, himself, would later be killed. ABC’s Jim Ryan is in Dallas with the latest on the investigation and on the city’s recovery.