Christina Swarns, center, the lead counsel for Duane Buck, is embraced by Buck's stepsister Phyllis Taylor, right, outside of the U.S. Supreme Court on Oct. 5 in Washington, D.C.
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During his sentencing for murder in 1997, the jury was told that because Duane Buck was black, he posed a "future dangerousness." He was given the death penalty.
Texas Department of Criminal Justice/AP