February 6, 2005 Inmate's Rising I.Q. Score Could Mean His Death By ADAM LIPTAK ORKTOWN, Va., Feb. 3 - Three years ago, in the case of a Virginia man named Daryl R. Atkins, the United States Supreme Court ruled that it was unconstitutional to execute the mentally retarded. But Mr. Atkins's recent test scores could eliminate him from that group.His scores have shot up, a defense expert said, thanks to the mental workout his participation in years of litigation gave him. The Supreme Court, which did not decide whether Mr. Atkins was retarded, noted that he scored 59 on...