The Illinois Supreme Court on Thursday sent a criminal case back to the trial court without addressing the question of whether a 76-year prison sentence for an 18-year-old defendant violates the state Constitution.A five-justice majority reversed the 1st District Appellate Court’s decision to vacate the sentence of Darien Harris after finding that no evidentiary hearing was held on Harris’ as-applied constitutional challenge. Although Harris’ constitutional challenge arose from a direct appeal of his murder and attempted …