Investigation that resulted in now-vacated conviction is itself being investigated
                                
                                
                                    (Newser) -
                                    In 1957, Illinois 7-year-old Maria Ridulph was abducted and murdered. In 2011, a suspect was arrested and convicted the following year. Then, in 2016, he was  set free  after a prosecutor and a judge determined he could not have committed the crime. Now, the investigation into that man, Jack Daniel...