Georgia's high court has halted a controversial execution in the nick of time. Warren Hill, whose lawyers say he is mentally retarded and thus can't be executed, was set to die last night. But the court delayed the move for an entirely different reason: Judges are set to decide whether public hearings are necessary before the state can switch to a different lethal injection procedure, CNN reports. All the justices but one declined to hear Hill's appeal of a ruling, saying he hadn't been proved mentally disabled "beyond a reasonable doubt." (More Georgia stories.)