Ohio Board of Regents Chanellor Jim Petro says he will retire in February.Petro says he wants to spend more time following a passion of his– stopping people from being wrongly convicted of crimes. He and his wife wrote a book on the subject, and Petro says retiring will let him accept invitations to speak at law schools. He tells Statehouse correspondent Bill Cohen he’ll soon speak at the University of Pittsburgh, the University of Akron, and overseas: