The Manhattan District AttorneyA s Office is looking into the decades-old suspicious death of a reporter who at the time was investigating the assassination of John F. Kennedy. Newspaper columnist and TV game show star Dorothy Kilgallen, 52, was found dead of an alleged drug overdose in her Manhattan townhouse on November 8, 1965 – just weeks before a trip she had planned to New Orleans to meet with a secret informant relating to an 18-month investigation she was conducting about KennedyA s assassination for a tell-all book.