Anti-death penalty activists, including members of and other advocay groups, rally outside the U.S. Supreme Court in a final attempt to prevent the execution of Oklahoma inmate Richard Glossip on Sept. 29. Larry French/Getty Images hide caption

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Dylann Roof faces nine counts of murder as well as charges of attempted murder and a weapons charge in connection with the June 17 killings inside the Emanuel AME Church in Charleston, S.C. Getty Images hide caption

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In this image taken from video, James Holmes (upper far left) listens to defense attorney Daniel King give closing arguments during Holmes' trial in Centennial, Colo., on Tuesday. Holmes was found guilty Thursday of first-degree murder in the deaths of 12 people at a Colorado theater. Colorado Judicial Department /AP hide caption

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The gurney in the the execution chamber at the Oklahoma State Penitentiary in McAlester, Okla. On Monday the Supreme Court voted 5-4 in a case from Oklahoma that the sedative midazolam can be used in executions without violating the prohibition on cruel and unusual punishment. Sue Ogrocki/AP hide caption

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A Tea Party supporter rings a bell in protest of the health care law in front of the U.S. Supreme Court, as Obamacare supporters shout behind her. Alex Wong/Getty Images hide caption

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