The Supreme Court won't review a claim by a Texas death row inmate who says his mental impairment should prevent his execution.
The court said Monday won't hear an appeal from Michael Wayne Hall. A federal trial judge and the 5th U.S. Circuit Court of Appeals in New Orleans have found that Hall is not mentally impaired.
Hall scored 67 on an intelligence test at the time of his trial for the murder of a 19-year-old woman in 1998; a score of 70 generally is the threshold for impairment.
Hall and Robert Neville Jr. shot Amy Robinson, a mentally impaired woman who once worked with them at a Dallas-area supermarket.
Neville was executed in 2006.
The case is Hall v. Thaler, 10-37.