A Michigan man represented by Northwestern University Pritzker School of Law’s Center on Wrongful Convictions was exonerated of a perjury conviction that implicated him in the 2007 murder of a 11-year-old girl.Last week, St. Joseph County (Mich.) Circuit Judge Paul E. Stutesman vacated the conviction of Raymond McCann II.Gregory R. Swygert, lead attorney with the Center on Wrongful Convictions, said his client is thrilled.“They dismissed the case with prejudice so there is no chance this will come back. We were …