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The jurors said the death of a teenager "weighed heavily on our hearts." But they did what the "law required."

U.S. Attorney General Eric Holder was speaking at the NAACP's annual convention in Orlando, Fla., a short distance from where unarmed black teenager Trayvon Martin was shot and killed last year. More than two dozen states have laws that allow people to use deadly force to defend themselves if they believe they are under attack.

"It's time to question laws that senselessly expand the concept of self-defense and sow dangerous conflict in our neighborhoods," the attorney general said Tuesday. Such a law hovered over the trial of George Zimmerman for the death of Trayvon Martin.

After being found unconscious, Michael Boatwright awakened to insist that his name is Johan Ek. And he couldn't speak English. Investigators pieced together some of his background and now a sister has talked about him. "He's always been just a wanderer," she says.

NPR's Russell Lewis got quite a view from the beach Monday as a hammerhead cruised among swimmers. Check the picture he snapped.

After seeing a Florida jury acquit George Zimmerman of the charges against him for the death of Trayvon Martin, those who have handled such cases on the federal level say they have doubts about the likelihood of a hate crimes prosecution being made.

"Juror B37," a woman in her 50s from Seminole County, Fla., explains to CNN her thinking about a key piece of evidence in the case. George Zimmerman was acquitted over the weekend of charges in the death of Trayvon Martin.

In his first public comments since a jury acquitted George Zimmerman of all charges, Attorney General Eric Holder did not announce any new federal action on the case.

As the not-guilty verdict set in, protesters took to the streets and thinkers asked the big questions.

George Zimmerman's acquittal in the shooting death of 17-year-old Trayvon Martin spurred emotional reaction around the country.