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Mary Ellen O'Toole, a former FBI senior profiler and one of the world's foremost experts on mass shootings, joins "CBS This Morning: Saturday" to explain why the Dallas police ambush was "well-planned" and what the gunman's "unusual" behavior during the

Demonstrators continued to pour out into the streets across the country Friday to voice their anger over the deadly shootings of two black men at the hands of police. John Blackstone reports.

Micah Johnson ambushed police during a protest in downtown Dallas Thursday, killing five officers and wounding nine others. We are finding out more about the gunman's planning and what police found in his home. Jeff Pegues reports.

The Interior Ministry says police have killed three suspected militants allegedly involved in the slaying of a Coptic Christian man

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