Protesters seek justice for Trayvon Martin

Chris Byaspearson, 11, center, holds a sign he made as he takes part in a rally outside the Estes Kefauver Federal Building on Saturday, July 20, 2013, in Nashville, Tenn. The Rev. Al Sharpton's National Action Network organized "Justice for Trayvon" rallies nationwide to press for federal civil rights charges against George Zimmerman, who was found not guilty in the shooting death of unarmed teenager Trayvon Martin.

New Orleans, La.

Wearing a hoodie, Rev. Dr. Norwood Thompson, chapter president of the Southern Christian Leadership Conference, speaks to the crowd at a rally held in reaction to the recent George Zimmerman acquittal in New Orleans, Saturday, July 20, 2013.

New Orleans, La.

Tommie Butler, 6, stands with his grandmother, Sharon Jasper, at a rally in reaction to the acquittal of George Zimmerman in the shooting death of Trayvon Martin, in New Orleans, Saturday, July 20, 2013.

New Orelans, La.

Ethel Bradford stands dressed as "blind justice," at a "Justice for Trayvon" rally in New Orleans, Saturday, July 20, 2013.

Gainesville, Fla.

AP Photo/The Gainesville Sun, Matt Stamey

Tyleigh Gould, eight months old, chews on a sign during a rally on Saturday, July 20, 2013, at a rally protesting the acquittal of George Zimmerman.

On Thursday, Florida Governor Rick Scott told activists that he did not support repealing his state's "Stand Your Ground" law.

Washington, D.C.

People gather in front of the federal court in Washington Saturday, July 20, 2013, as they demonstrate in the "Justice for Trayvon - 100 City Vigil."

Civil rights groups mobilized protests in cities across the U.S. on Saturday amid charged emotions over the acquittal of George Zimmerman in the shooting death of unarmed black teenager Trayvon Martin. The demonstrations come a day after President Barack Obama publicly identified with the slain 17-year-old and the deep frustrations felt among African-Americans over the verdict.

Washington, D.C.

People demonstrate in Washington on July 20, 2013, one week after the acquittal of George Zimmerman.

Washington, D.C.

People demonstrate in Washington on July 20, 2013, one week after the acquittal of George Zimmerman in the fatal shooting of Trayvon Martin.

New York, N.Y.

A man holds up a black hoodie in memory of Trayvon Martin at a rally July 20, 2013 in New York. Hundreds were in attendance at the NYC rally "Justice for Trayvon."

New York, N.Y.

Rev. Al Sharpton speaks during a rally honoring Trayvon Martin, organized by the National Action Network, outside One Police Plaza in Manhattan on July 20, 2013. Demonstrators have gathered in various cities across the country to protest the acquittal of neighborhood watchman George Zimmerman and press for his federal prosecution in the shooting death of teenager Trayvon Martin.

New York, N.Y.

Trayvon Martin's mother, Sybrina Fulton, speaks at a podium as his brother, Jahvaris Fulton, stands by during a rally honoring the Florida teenager organized by the National Action Network, outside One Police Plaza in Manhattan on July 20, 2013 in New York City. Demonstrators have gathered in various cities across the country to protest the acquittal of neighborhood watchman George Zimmerman and press for his federal prosecution in the shooting death of Martin.

New York, N.Y.

Singer Beyonce listens to speakers at a rally for Trayvon Martin on July 20, 2013 in New York. Beyonce was in attendance at the NYC rally "Justice for Trayvon."

New York, N.Y.

A man holds a sign at a rally honoring Trayvon Martin outside One Police Plaza in Manhattan on July 20, 2013.

New York, N.Y.

Demonstrators march across the Brooklyn Bridge after a "Justice for Trayvon" rally in New York, Saturday, July 20, 2013.

Athens, Ga.

AP Photo/The Athens Banner-Herald, AJ Reynolds

Showyn Walton raises his fist during a rally in support of Trayvon Martin in Athens, Ga., on Saturday, July 20, 2013.

Athens. Ga.

Anna-Marie Favors holds a sign during a rally in support of Trayvon Martin in Athens, Ga., on Saturday, July 20, 2013. The Rev. Al Sharpton's National Action Network organized "Justice for Trayvon" rallies nationwide to press for federal civil rights charges against George Zimmerman, who was found not guilty in the shooting death of unarmed teenager Trayvon Martin.

Jersey City, N.J.

Mya Chavis, left, adjusts the hood of a jacket over herself while sitting with Danyse Ryan as they wait for the "Justice for Trayvon" rally to start outside of the William T. Brennan Courthouse, Saturday, July 20, 2013, in Jersey City, N.J.

Jersey City, N.J.

Ada Wideman, right, and Elaine Maldonado embrace during a rally outside of the William T. Brennan Courthouse in Jersey City, N.J., Saturday, July 20, 2013.

Maldonado, who met Wideman at the rally, gave her a peace bracelet she was wearing as a gift.

Nashville, Tenn.

People attend a rally outside the Estes Kefauver Federal Building on Saturday, July 20, 2013, in Nashville, Tenn. The Rev. Al Sharpton's National Action Network organized "Justice for Trayvon" rallies nationwide to press for federal civil rights charges against George Zimmerman, who was found not guilty in the shooting death of unarmed teenager Trayvon Martin.

Los Angeles, Calif.

Demonstrators gather on July 20, 2013 at the Los Angeles Federal Courthouse as part of a nationwide rally to honor Trayvon Martin. Civil rights groups mobilized for protests in cities across the United States on Saturday amid charged emotions over the not-guilty verdict in the shooting death of the unarmed Florida teenager. George Zimmerman, who said he acted in self-defense, was acquitted of fatally shooting Martin in the chest on the rainy night of February 26, 2012, during an altercation in a gated community in Sanford, Fla.

Los Angeles, Calif.

Demonstrators gather on July 20, 2013 in Los Angeles as part of a nationwide rally to honor Florida teenager Trayvon Martin.

Atlanta, Ga.

A demonstrator holds an American flag as it rains during a rally outside the Richard B. Russell Federal Building, Saturday, July 20, 2013, in Atlanta.

Las Vegas, Nev.

Demonstrators chant slogans outside the Lloyd George Federal Courthouse during a "Justice for Trayvon" rally, Saturday, July 20, 2013, in Las Vegas.

Miami, Fla.

Demonstrators march in the streets of Miami after a "Justice for Trayvon" rally, Saturday, July 20, 2013.

New York, N.Y.

A man holds up a black hoodie in memory of Trayvon Martin at a rally July 20, 2013 in New York.

Civil rights groups mobilized protests in cities across the U.S. on Saturday amid charged emotions over the acquittal of George Zimmerman in the shooting death of an unarmed black teenager.

The demonstrations come a day after President Barack Obama publicly identified with the slain 17-year-old and the deep frustrations felt among African-Americans over the verdict.