Obama praises Tennessee teen killed while shielding girls from gunfire
Thousands of people across the U.S. are remembering a 15-year-old from Tennessee who died trying to shield three girls from a shooting. Police say Zaevion Dobson was killed in Knoxville Thursday when he got caught in the crossfire between rival gangs. President Obama leads a list of Americans paying homage to Dobson. David Begnaud reports.