Thousands of people gathered in Union Square in New York City on March 21 for a "Million Hoodie March" to demand justice for Trayvon Martin, as outrage at his racist murder continues to spread across the country and the world.
Martin was gunned down in the central Florida town of Sanford in late February as he walked to the home of his father's fiance. His killer was George Zimmerman, a neighborhood watch volunteer who was patrolling a gated community when he spotted Martin.