SANFORD, FL – JUNE 26: Trayvon Martin’s parents Sybrina Fulton, left and Tracy Martin listen to witness testimony during George Zimmerman’s trial in Seminole circuit court June 26, 2013 in Sanford, Florida. Zimmerman is charged with second-degree murder for the February 2012 shooting death of 17-year-old Trayvon Martin. (Photo by Jacob Langston-Pool/Getty Images)