Demonstrators hold their hands aloft during a march and rally to the front of the Sanford Police Department for Trayvon Martin in Sanford, Florida, March 31, 2012. Sanford is the Florida town where Trayvon Martin, 17, was shot dead on February 26 after George Zimmerman, 28, a Hispanic neighborhood watch captain, believed the young man walking through the gated community in a hooded sweatshirt looked suspicious. REUTERS/Lucas Jackson (UNITED STATES – Tags: CRIME LAW CIVIL UNREST)