Five officers were killed and nine others wounded during a protest Thursday, when a gunman targeted them following the deadly shootings of two black men at the hands of police officers this week. Investigators say Micah Johnson, an Afghan war veteran, was amassing an arsenal at his home outside Dallas. His tour of duty ended in 2014 when he was sent back to the U.S. after a female soldier accused him of sexual harassment. Manuel Bojorquez reports.
