Missouri case mirrors Trayvon Martin

Protesters fill Florissant Road in downtown Ferguson, Mo. Monday, Aug. 11, 2014, marching along the closed street. The rally marched along the street in front of the town's police headquarters to protest the shooting of 18-year-old Michael Brown by Ferguson police officers on Saturday. (AP Photo/)

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    Missouri case mirrors Trayvon Martin

Trayvon Martin case influences reaction to killing of Michael Brown. CNN's David Mattingly reports.