Assuming that wasn't part of the plan.
Was there any way JFK was going to live? However, if there were white hats supporting him, aware of the danger and committed … ? A pawn is a very valuable piece because of its ability to force, at low cost, an open. If further ignored and not taken, it can become a queen (or anything else… but outside of the few times you would want a knight, the most logical choice is the queen).
What would prompt a release of the text messages and e-mails? What didn't Kennedy have?