Warren Lee Hill was sentenced to death for bludgeoning Joseph Handspike with a nail-studded board.

Handspike, Hill's fellow inmate, had been sleeping and other prisoners begged Hill to stop. Hill "was already serving a life sentence for murder in the 1986 slaying of his girlfriend, Myra Wright, who had been shot 11 times."

The Handspike murder took place in 1990, 23 years ago, and just as Hill was being prepped for the lethal injection, the 11th U.S. Circuit Court of Appeals granted a stay, so that it may be determined, after all these years, whether Hill is — as his lawyer put it — "a person with mental retardation."

Hill has received support from various activists and from former President Jimmy Carter and his wife Rosalynn.

"Georgia should not violate its own prohibition against executing individuals with serious diminished capacity," President Carter said in a statement....

Georgia passed a law in 1988 prohibiting the execution of mentally disabled death row inmates, and the U.S.Supreme Court ruled in 2002 that the execution of mentally disabled offenders is unconstitutional....

Before trial, Hill's family members described him as "the leader of the family" and "a father figure," the state notes. He was not in special education classes and served in the Navy, where he received promotions, the state said.