NEW YORK, NY - JULY 20: A woman holds a sign as she attends a rally honoring Trayvon Martin organized by the National Action Network outside One Police Plaza in Manhattan on July 20, 2013 in New York City.  Demonstrators have gathered in various cities across the country to protest the acquittal of neighborhood watchman George Zimmerman and press for his federal prosecution in the shooting death of teenager Trayvon Martin.  (Photo by Kena Betancur/Getty Images)