LBJ & JFK shot in dallas

What if LBJ had been in the car, along side Kennedy and Governor Connolly? Suppose one of Oswalds shots hit LBJ straight between the eyes

Who would have been president?

Now what?

President, IIRC, would be the Speaker of the House, who was John W. McCormack. What kind of President he would make I leave as an exercise for the student.

There is a very very long list of people who would become president if everyone above them on the list died; something like 18 people, I believe. And just for the record, I`m going to assume that they President and Vice President are rarely in the same motorcade together, just because of the possibility of simultaneous assassination.