Protestors sing in front of the Sanford Police Department after shutting down Police Headquarters in Sanford, Florida

 
Protestors sing in front of the Sanford Police Department after shutting down Police Headquarters in Sanford, Florida
Protestors sing in front of the Sanford Police Department after shutting down Police Headquarters in Sanford, Florida, April 9, 2012. Florida State's Attorney Angela Corey announced Monday that she would not use a grand jury in the investigation of the death of Trayvon Martin. Martin, 17, was shot and killed by volunteer neighborhood watch captain George Zimmerman on February 26, sparking protests from civil rights groups. REUTERS/David Manning (UNITED STATES - Tags: CRIME LAW CIVIL UNREST)