Don't know the answer.
But I am more interested in historical context. Ted Kennedy's place in history is cemented, and history is going to hold him in relatively high esteem for his lifetime of public service.
That will not change because Breitbart, InfoWar, or whatever, still want to complain about Chappaquidick, and whether Kennedy was too drunk, too physically incapacitated or injured, or just not heroic enough to save her life. History is not going to judge him on that, even if WorldNutDaily does.