People hold signs during a demonstration in New York on July 14, 2013. Protests were held one day after a US jury found George Zimmerman not guilty of murdering unarmed black teen Trayvon Martin on February 26, 2012, in a racially charged trial that transfixed the country. The trial aroused strong passions among those who believed that Zimmerman -- a volunteer neighborhood watchman whose father is white and whose mother is Peruvian -- racially profiled and stalked Martin, and those convinced he acted in self-defense. Credit: AFP/Getty Images