When a state conditions a capital defendant's eligibility to be sentenced to death on a jury's determination of "future dangerousness," can the state refuse to recognize challenges to the accuracy of the jury's determination as cognizable grounds for post-conviction review?

Does it violate the protections of the Eighth and Fourteenth Amendments to the United States Constitution to execute an individual who does not meet the eligibility criteria for a sentence of death under state law?

Can a state refuse to recognize challenges to the accuracy of a jury's determination of 'future dangerousness' as cognizable grounds for postconviction review?