Justice for Trayvon Martin rally in Los Angeles (39 images)

Hundreds of protesters participate in a "Justice for Trayvon" rally at the federal courthouse in downtown Los Angeles on July 20, 2013. The demonstration was part of a 100-city effort to demand a federal investigation into possible violations of Travyon Martin's civil rights. A jury in Sanford, Florida last Saturday found George Zimmerman, a volunteer neighborhood watchman, not guilty of shooting Martin dead, a 17 year-old unarmed teen on the night of February 26, 2012. UPI/Jim Ruymen

Hundreds of protesters participate in a "Justice for Trayvon" rally at the federal courthouse in downtown Los Angeles on July 20, 2013. The demonstration was part of a 100-city effort to demand a federal investigation into possible violations of Travyon Martin's civil rights. A jury in Sanford, Florida last Saturday found George Zimmerman, a volunteer neighborhood watchman, not guilty of shooting Martin dead, a 17 year-old unarmed teen on the night of February 26, 2012. UPI/Jim Ruymen

Hundreds of protesters participate in a "Justice for Trayvon" rally at the federal courthouse in downtown Los Angeles on July 20, 2013. The demonstration was part of a 100-city effort to demand a federal investigation into possible violations of Travyon Martin's civil rights. A jury in Sanford, Florida last Saturday found George Zimmerman, a volunteer neighborhood watchman, not guilty of shooting Martin dead, a 17 year-old unarmed teen on the night of February 26, 2012. UPI/Jim Ruymen

Demonstrators angry at the acquittal of George Zimmerman in the death of black teen Trayvon Martin, gather in the Crenshaw area to protest the acquittal, in Los Angeles on July 14, 2013. A jury in Sanford, Florida late Saturday found Zimmerman, a volunteer neighborhood watchman, not guilty of shooting Martin dead, a 17 year-old unarmed teen on the night of February 26, 2012. UPI/Jim Ruymen