Sybrina Fulton (2nd,R) and Tracy Martin (R), parents of teenager Trayvon Martin who was killed by neighborhood watchman George Zimmerman in Sanford, Florida, bow their heads for a moment of silence along with attorneys Daryl Parks (L) and Ben Crump at a Democratic forum called by the House Judiciary Committee on Capitol Hill, March 27, 2012 in Washington, DC. The shooting has sparked a debate about Florida's Stand Your Ground self defense law, Zimmerman has not been arrested and many details remain unknown. UPI/Mike Theiler