A celebrated Massachusetts surgeon has been charged with the murder of his wife, 45-year-old Kathleen McLean. Her body was found in a small pond near their Dover home Saturday night, cops said. Ingolf Tuerk, 58, the former head of urology at St. Elizabeth Hospital in Brighton, pleaded not guilty in Dedham District Court during his arraignment Monday. He is currently being held without bail. McLean told officers in February that Tuerk was physically abusive and she was seeking a divorce.