Manhunt for Louisiana gunman after attack on good Samaritan
There is an intensive search for a suspected gunman, believed to be 21-year-old Euric Cain, who shot a Tulane University medical student in New Orleans. Peter Gold tried helping a woman being dragged away by another man. Surveillance video shows the gunman shot Gold, who is now recovering in a hospital. David Begnaud reports on what the police know about the gunman.