Court upholds death sentence, says defense must prove retardation

Tuesday, January 15, 2008 | 10:03 p.m. CST; updated 10:15 p.m. CDT, Monday, July 21, 2008

JEFFERSON CITY — The state Supreme Court on Tuesday narrowly upheld the death sentence of a man convicted of a Columbia triple murder who had claimed in his latest appeal that he was mentally retarded.