A divided Supreme Court has dismissed Alabama’s bid to be allowed to execute a convicted murderer who was found by lower courts to be intellectually disabled

The 55-year-old man at the center of the case, who has been on death row for more than 2 decades, has IQ scores ranging from 72 to 78.

The Supreme Court on Thursday let stand an appeals court decision that barred Alabama from executing a man that lower courts found is likely intellectually disabled.