The Kennedys are well known for rolling nat 1s pretty regularly.
Unrelated, I have been to both the spot where Oswald stood and where Kennedy was shot, since I used to live in Dallas. The assassination permanently fucked up trafic in Dallas, because Kennedy got killed right before one of the worst on-ramp in the entire metro area, which now can't be replaced or altered since it's where a president got shot and is thus a somewhat important historical site. I always hated driving in that area.