Cynthia Gardner Williams holds up a sign with a quote from Karl Marx at the “We Shall Not Be Moved” rally Friday, July 19, 2013 in the Capitol Courtyard in Tallahassee, Fla. The rally, sponsored by the NAACP, is a show of support for Dream Defenders, who continue their sit-in at Florida Gov. Rick Scott’s office. The sit-in is their response to the acquittal of George Zimmerman in the fatal shooting death of Trayvon Martin. (AP Photo/Phil Sears)

Mya Chavis, left, adjusts a the hood of a jacket over herself while sitting with Danyse Ryan while they wait for a rally to start outside of William T. Brennan Courthouse, Saturday, July 20, 2013, in Jersey City, N.J. The Rev. Al Sharpton’s National Action Network organized “Justice for Trayvon” rallies nationwide to press for federal civil rights charges against George Zimmerman.

Ethel Bradford stands dressed as ‘blind justice’

People hold signs at a rally in reaction to the recent George Zimmerman acquittal in New Orleans

Tommie Butler, 6, stands with his grandmother Sharon Jasper at a rally 

Tyrone Kilgore, of Miami, wears a “hoodie” 

Terrell Gordon Jr., 6

Dinetta Gilmore attends a “Justice for Trayvon” rally in New York

David Williams, of Miami

People attend a rally on Saturday, July 20, 2013, in Nashville, Tenn. 

People hold hands as they pray during a “Justice for Trayvon” rally in New York

Elijah Ash, 8

Lynn Moore, of Salt Lake City, shows her support during a rally at the Wallace F. Bennett Federal Building in Salt Lake City

Gregory Lucero, of Salt Lake City

Erin O’Connell

People march through the streets while participating in the “Justice for Trayvon” rally, Saturday July 20, 2013, outside the Federal Courthouse in Philadelphia.

Laetitia Sangwa of Congo, right, and Soulihe Nida of Ethiopia stand in front of the Federal Courthouse in Washington

Zakiyyah Muhammed ,of Chicago

Gerald Brogdon wears a Trayvon Martin T-shirt as he waves at passing cars during a rally outside the Estes Kefauver Federal Building on Saturday, July 20, 2013, in Nashville, Tenn. 

Chris Byaspearson, 11

Jonathan Money, 4

Tommie Butler, 6, stands with his grandmother Sharon Jasper at a rally held in reaction to the recent George Zimmerman acquittal in New Orleans

Demonstrators listen to comments outside the Lloyd George Federal Courthouse during a “Justice for Trayvon” rally, Saturday, July 20, 2013, in Las Vegas.