1 / 10

Trayvon Martin - Trayvon Martin, a 17-year-old high school student, was shot and killed in a gated community in Sanford, Florida, by George Zimmerman, a 28-year-old neighborhood watch volunteer. The shooting sparked a national controversy. (Photo: Courtesy of Newscom/UPI/Landov)

2 / 10

Sybrina Fulton and Tracy Martin - Parents of Trayvon Martin, Sybrina Fulton and Tracy Martin, have become outspoken activists against gun violence and Florida's Stand Your Ground law. (Photo: Alex Wong/Getty Images)

3 / 10

Jahvaris Fulton - Trayvon Martin's older brother, Jahvaris Fulton, is a student at Florida International University. (Photo: John Ricard / BET)

4 / 10

Benjamin Crump - Benjamin Crump is the attorney for the parents of Trayvon Martin. He has become a well-known figure in the campaign against Florida's "Stand Your Ground" law. (Photo: Joe Raedle/Getty Images)

5 / 10

George Zimmerman - George Zimmerman is facing charges of second-degree murder in the death of Trayvon Martin. He has insisted that he acted in self-defense, although Martin's parents say Zimmerman was practicing racial profiling. (Photo: Gary Green/The Orlando Sentinel-Pool/Getty Images)

6 / 10

Mark O'Mara - Mark O'Mara is the attorney representing George Zimmerman, the neighborhood watch volunteer who shot and killed Trayvon Martin. He currently presides as president of the Seminole County Bar Association. (Photo: Red Huber/The Orlando Sentinel-Pool/Getty Images)

7 / 10

Shellie Zimmerman - Shellie Zimmerman is the wife of George Zimmerman. She was arrested June 12, 2012, on one count of perjury for misrepreseting the couple's finances. (Photo: Seminole County Jail)

8 / 10

Bill Lee - Bill Lee, the former police chief of Sanford, Florida, was widely criticized for his handling of the investigation of the Trayvon Martin killing. He was removed from the position in June 2012 by the city manager for his handling of the case.(Photo: AP Photo/Julie Fletcher, File)

9 / 10

State Attorney Angela Corey - State Attorney Angela Corey served as the special prosecutor in the Trayvon Martin case. In April 2012, she announced that George Zimmerman was being charged  with second-degree murder in the shooting death.   (Photo: AP Photo/Rick Wilson)

Photo By AP Photo/Rick Wilson

10 / 10

Judge Debra Nelson - Debra Nelson is the judge in the Travyon Martin murder case against George Zimmerman. The case is scheduled to begin in June.(Photo: REUTERS/George Skene/Pool)