LANSING (AP) – The Michigan appeals court has ruled to limit the use of a landmark court decision that ends mandatory no-parole sentences for juveniles convicted of murder.

The state court in a decision dated Thursday and released Friday says a major U.S. Supreme Court decision from earlier this year should not apply retroactively to Michigan inmates who already have exhausted most appeals.

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The Michigan Court of Appeals ruled in the case of a St. Clair County man, Raymond Carp, who was convicted of a murder committed when he was 15. His lawyer, Patricia Selby, says they’re both “very disappointed” by the decision.

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More than 350 prisoners in Michigan are serving mandatory no-parole sentences for murders committed when they were under 18. That’s one of the highest totals in the U.S.

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