Quimani Cobb, 11, holds a sign while taking part in the Seattle Unite 1,000 Hoodies rally for Trayvon Martin at Westlake Park in Seattle, Wednesday. Neighborhood watch captain George Zimmerman shot and killed the unarmed 17-year-old on Feb. 26 in Sanford, Fla. New details continue to emerge a month after the shooting, and Zimmerman has still not been charged.
