what day did john kennedy crash his plane?
John Hankey. is a long-time investigator who has focused much of his attention. on the assassination of President John F. Kennedy in 1963. He produced. a documentary setting force his views on that event. Hankey has. also turned his attention to the death of John F. Kennedy, Jr. in. a plane crash off the coast of Martha's Vineyard, Massachusetts. on Friday, July 16, 1999. Hankey has produced a 104-minute DVD documentary.