Police name person of interest in July 4 parade shooting

Highland Park, Illinois, Police Chief Lou Jogman names a person of interest in the shooting at a July 4th parade in the Chicago suburb. CNN’s Wolf Blitzer is joined by former Philadelphia Police Commissioner Charles Ramsey, former FBI Deputy Director Andrew McCabe and former Secret Service Agent Jonathan Wackrow to discuss how local, state and federal law enforcement officials are conducting the manhunt for the suspect named by police. #CNN #News