Sanford, Fla., police Officer Timothy Smith holds up the gun that was used to kill Trayvon Martin, while testifying on June 28, 2013, the 15th day of George Zimmerman's murder trial. Zimmerman has listed the gun for sale online.
A booking photo provided by the Seminole County Public Affairs shows George Zimmerman on Saturday, Jan. 10, 2015. In the latest in a string of run-ins with the law in the past two years, Zimmerman has been charged with aggravated assault.
Attorney General Eric Holder speaks at the annual convention of the NAACP in Orlando, Fla., on Tuesday. Holder told the convention that "Stand Your Ground" laws that have been adopted in 30 states should be reconsidered.
David Manning/Reuters /Landov
Tammy Haynes, left, Whitney Tillman, center, and Crystal Haynes attend a sermon at the St. Paul Missionary Baptist Church in Sanford, Fla., Sunday. Many in the congregation wore shirts in support of Trayvon Martin.
Phelan M. Ebenhack/AP
George Zimmerman wipes his face after arriving in the courtroom for his trial in Sanford, Fla., on Friday. Zimmerman is charged in the 2012 shooting death of unarmed teenager Trayvon Martin.