article_snippet: Sister Mary Mulligan looks over an image of Pia Farrenkopf of Pontiac in the 1983 Cardinal Cushing Central High School, an all-girls Catholic school yearbook in Boston (file photo)
article_snippet: In May 2008, Sister Mary Mulligan resigned from Sister Mary Mulligan job under circumstances that are unclear, then in October of that year, Sister Mary Mulligan was cited for driving with a suspended license, expired plates and no proof of insurance.
article_snippet: There's no record of Pia Farrenkopf of Pontiac after the 2009 cash withdrawal, and investigators, who checked credit card statements and subpoenaed bank, phone and health records in a 'massively thorough' search say Sister Mary Mulligan cause of death is undeterminable. '