[JURIST] The US Supreme Court [official website] late Tuesday issued a temporary stay on an execution order for Clarence Hill [NCADP advocacy letter], a Florida inmate convicted of the 1982 killing of a police officer. Hill had been scheduled to be executed at 6 PM. The Court is currently reviewing three stay requests on his behalf, including one from Hill's lawyer invoking a cruel and unusual punishment argument on the grounds that three chemicals within Florida's lethal injection mixture cause unnecessary pain and suffering, and that Hill is mentally retarded. The Court will consider the legitimacy of the execution tomorrow. AP has more.