The execution of triple-murderer Glenn William Holladay...

The execution of triple-murderer Glenn William Holladay was blocked by the U.S. Supreme Court pending a review of his claim that mentally retarded inmates should not be put to death. The court, without saying how it voted, blocked the execution scheduled for 12:01 a.m. CDT Friday, but could lift the stay later if it decides not to give Holladay's case a full review. Holladay, 51, described by the state as having an IQ of 69, was to die for the Aug. 25, 1986 murders of his ex-wife, Rebecca Ledbetter Holladay, her boyfriend, David Robinson, and a neighbor, 16-year-old Larry Thomas Jr., a friend of Mrs. Holladay's son.The Alabama Supreme Court voted unanimously -- 8-0 - in denying the request to block the execution.