COLUMBIA, S.C. AP _ Attorneys have asked the U.S. Supreme Court to hear the case of a teen sentenced to 30 years in prison for killing his grandparents when he was 12, arguing that the sentence is cruel.

Christopher Pittman used a shotgun to shoot his grandparents Joe and Joy Pittman, and then set fire to their home in 2001. During his trial four years later, Pittman’s attorneys unsuccessfully argued the slayings were influenced by the antidepressant Zoloft – a charge the maker of the drug vigorously denied.