Undated handout photo released by the Martin family public relations representative shows 17-year-old Trayvon Martin

 
Undated handout photo released by the Martin family public relations representative shows 17-year-old Trayvon Martin
An undated handout photo released by the Martin family public relations representative shows 17-year-old Trayvon Martin. Martin was shot and killed as he walked through a gated neighborhood, where he was visiting family in Sanford, Florida on February 26, 2012. Neighborhood watch volunteer George Zimmerman said he shot Martin in self-defense and Sanford police have not charged Zimmerman. Federal authorities said on March 18, 2012 they were in contact with local police investigating the killing. REUTERS/Handout