BOISE, Idaho (AP) — The U.S. Supreme Court has denied hearing an appeal of a man who was sentenced to death for kidnapping, torturing and killing a young northern Idaho boy after killing several of members of his family.

Suspected Kidnapper Joseph Duncan Arraigned
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U.S. Attorney Wendy Olson announced Wednesday that the high court had made their decision earlier this week. Joseph Edward Duncan III faces the death penalty for the 2005 murder of 9-year-old Dylan Groene. He also faces several life sentences for the murder of three family members and the kidnapping of his then-8-year-old sister. At the time, Duncan represented himself at his sentencing hearing but later waived his right to appeal.

He has since changed his mind and his defense attorneys say he wasn't mentally competent to waive his rights. The high court's decision affirms U.S. District Court Judge Edward Lodge's 2013 finding that Duncan was competent to waive his appeal. No execution date has been set, and Duncan's attorneys may still seek other post-conviction relief.

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