SPRINGFIELD — Following the Illinois Supreme Court’s Tuesday denial of a petition to order a new sentencing hearing for Jason Van Dyke, the former cop’s attorneys said they are happy with the high court’s decision.Meanwhile, Illinois Attorney General Kwame Y. Raoul expressed disappointment and found the court majority’s lack of an explanation for its ruling concerning.Darren W. O’Brien, one of Van Dyke’s attorneys, said Tuesday’s news was a nonissue to begin with because …