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Anti-death penalty protesters celebrate after hearing about a delay of the execution by the U.S. Supreme Court for Georgia death row inmate Troy Davis In Jackson, Ga., Wednesday, Sept. 21, 2011. Davis was scheduled to die Wednesday for killing off-duty Savannah officer Mark MacPhail.

Georgia executes Troy Davis

Georgia inmate Troy Davis was executed for the killing of an off-duty police officer in a case that has drawn worldwide support over his claims of innocence. Courts consistently ruled against him, however, and the officer's family says they finally have justice after 22 years. (AP)