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George Zimmerman has not been charged in the death of Trayvon Martin.

African American teenager Trayvon Martin was shot and killed last month while walking home from a 7-11 store in Sanford, Florida.

The shooter was a neighborhood watch captain named George Zimmerman. Zimmerman - a 28-year-old Hispanic man - says he acted in self-defense.

Florida law allows a person to use deadly force if they believe they're facing a mortal threat. But Martin was not carrying a weapon - just a bag of Skittles and a bottle of iced tea. The case has drawn national attention for its racial implications. Many critics have said Martin was killed because he was black.

Guest:

Frances Robles is a Miami Herald reporter who has been following the shooting.