The fatal shooting of Trayvon Martin by George Zimmerman took place on the night of February 26, 2012, in Sanford, Florida, United States. Martin was a 17-year-old African American high school student. George Zimmerman, a 28-year-old multi-racial Hispanic American, was the neighborhood watch coordinator for the gated community where Martin was temporarily staying and where the shooting took place. Following an earlier call from Zimmerman, police arrived within two minutes of a gunshot during a scuffle. Zimmerman was taken into custody, treated for head injuries, then questioned for five hours, but eventually released under the supposition the shooting was in self-defense. However, six weeks later, amidst a "media circus" involving accusations of racism, Zimmerman was charged with murder by a new prosecutor. He was found not guilty on July 13, 2013.
Source: http://en.wikipedia.org/wiki/Shooting_of_Trayvon_Martin