50 years after the murder of Emmett Till, the investigation continues

This weekend marks the 50th anniversary of Emmett Till. He was beaten and shot near Money, Mississippi after he allegedly whistled at a white female store clerk. We speak with filmmaker Keith Beauchamp, who produced "The Untold Story of Emmett Louis Till," and Clenora Hudson-Weems, Professor of English at the University of Missouri-Columbia and author of the book "Emmett Till: The Sacrificial Lamb of the Civil Rights Movement."