POD: On her way to church with President-elect JFK that morning,
Jackie Kennedy suddenly remembers she's forgotten a tube of lipstick
from her handbag and goes back into the house before reaching the
front door.
Anyway: one Richard Pavlick of New Hampshire, whose car is parked right
opposite Joseph Kennedy's house, is not deterred -- by the appearance of
Jacky -- from pulling the detonator attached to the rather large quantity
of dynamite he has driven all the way to Palm Beach. Both Pavlick, and
JFK (and Jackie, and the kids) are killed in the resulting explosion,
along with a few other by-standers and secret service bodyguards.
What happens next, if JFK, having won the 1960 election, is assassinated
before taking office?