The state has dismissed the doctors' new testimony, saying it isn't credible. And courts have ruled that Hill is procedurally barred from having a new hearing. His lawyers had asked the U.S. Supreme Court to review the case based on the new evidence, but the high court this month declined to take it up. Hill has a challenge on different grounds pending before the Georgia Supreme Court. But he has exhausted his challenges on the mental disability issue, Kammer said.
Even if changes are made to Georgia's law, they will likely not be retroactive and wouldn't apply to Hill, Keeley said.