

George Zimmerman, awaiting trial in the shooting death of teenager Trayvon Martin, arrives in the county court, in Sanford, Fla., with his attorney Mark O'Mara (l.) for a pretrial hearing, April 30, 2013. Mr. Zimmerman has pleaded not guilty. Joe Burbank/Orlando Sentinel/AP
Sybrina Fulton, mother of shooting victim Trayvon Martin, sits with with her attorney, Benjamin Crump, during a pretrial hearing for George Zimmerman, Trayvon's accused shooter, May 28, 2013, in Sanford, Fla. Joe Burbank//Orlando Sentinel/AP
On the first anniversary of the shooting death of teenager Trayvon Martin, on Feb. 26, 2013, a boy wearing a hooded sweatshirt joins others in a candlelight vigil marking the exact moment when Trayvon was shot. In a symbolic gesture, attendees wore hooded sweatshirts like the one Trayvon was wearing at the time of his death. Brian Blanco/Reuters
George Zimmerman (l.) and attorney Don West appear before Circuit Judge Kenneth Lester Jr. during a bond hearing at the Seminole County Criminal Justice Center in Sanford, Fla. A Florida judge on Thursday, July 5, 2012, granted bond for a second time to George Zimmerman. Bail was set at $1 million. Joe Burbank/Orlando Sentinel/AP
Tracy Martin (l.), father of Trayvon Martin; Jahvaris Fulton (2nd l.), brother of Trayvon Martin; attorney Daryl Parks (c.); Sybrina Fulton, mother of Trayvon Martin; and attorney Benjamin Crump (r.) arrive at the Seminole County Criminal Justice Center to attend a bond hearing for George Zimmerman, Friday, June 29, 2012, in Sanford, Fla. Zimmerman has been charged with second-degree murder in the shooting death of Trayvon Martin. John Raoux/AP
George Zimmerman (r.) arrives at the Seminole County Courthouse in Sanford, Fla., on April 20, 2012, for a bond hearing before Judge Kenneth Lester Jr. He is charged with second-degree murder in the shooting death of Trayvon Martin. Gary W. Green/Reuters
Mark O'Mara, attorney for George Zimmerman, addresses media outside his offices in Orlando, Fla., on April 11, 2012. O'Mara said Zimmerman would plead not guilty. Phelan M. Ebenhack/AP
George Zimmerman (l.), with checkered shirt and jacket over his head, is led into the Seminole County Justice Center in Sanford, Fla., on April 11, 2012, after his arrest in the shooting death of Trayvon Martin. Jon Busdecker/Orlando Sentinel/AP
LeTasha Brown stands with her arms around Anthony Dixon Jr. during an NAACP march and rally for Trayvon Martin, held at the front of the Sanford Police Department in Sanford, Fla., Friday. Lucas Jackson/Reuters
Rep. Bobby Rush (D) of Illinois speaks on the House floor on Capitol Hill in Washington on March 28, 2012. Representative Rush donned a hoodie and sunglasses during the speech that deplored the killing of Trayvon Martin. He received a reprimand for violating rules on wearing hats in the House chamber. House Television/AP
A sign with information regarding a neighborhood watch program stands in front of The Retreat at Twin Lakes community in Sanford, Fla., March 27, 2012. Lucas Jackson/Reuters
Trayvon Martin's mother, Sybrina Fulton, and father, Tracy Martin, attend a House Judiciary Committee briefing on racial profiling and hate crimes on March 27, 2012, on Capitol Hill in Washington. Jacquelyn Martin/AP
Signs, balloons, packages of Skittles, and cans of iced tea are piled into a memorial dedicated to Trayvon Martin on March 27, 2012, near the site where he was killed in front of The Retreat at Twin Lakes community in Sanford, Fla. Lucas Jackson/Reuters
Kevin Sinclair (l.), Henry Hill (c.), and Eddie Anderson wear hoods during a vigil in memory of Trayvon Martin at the Civil Rights Memorial in Montgomery, Ala., on March 25, 2012. Mickey Welsh/Montgomery Advertiser/AP
Congregants arrive at Middle Collegiate Church in New York on March 25, 2102. Churchgoers were invited to wear hoodies to services to show their support for justice in the case of slain teenager Trayvon Martin. Seth Wenig/AP
The Rev. Glenn Dames, senior pastor at St. James AME Church, leads people in a prayer at the Titusville Courthouse on Sunday, March 18, 2012, in Titusville, Fla. A rally was held demanding justice for Trayvon Martin. Craig Rubadoux/Florida Today/AP
Jeff Triplett, mayor of Sanford, Fla. (r.), stands next to US Rep. Frederica Wilson (D) of Florida as he answers questions about the Trayvon Martin case after a news conference at the US Capitol in Washington, on March 20, 2012. Jacquelyn Martin/AP
Hundreds of people gather for a rally for Trayvon Martin in New York. John Minchillo/AP
Marry Golding of Orlando, Fla., shows her support for Trayvon Martin during a protest organized by the Florida Civil Rights Association in front of the Florida Division of Licensing on March 21, 2012. The group is demanding that the state revoke the concealed weapons permit issued to George Zimmerman, the neighborhood watch captain who shot and killed Trayvon. Octavian Cantilli/Reuters