JFK was taken out by forces who believed he was a prime target for blackmail. His failure to back the joint chiefs at the Pay of Pigs and his blockade of Cuba in ‘62 convinced some that he was in a job way over his head.
The Profumo scandal in Britain convinced others to worry. If a British defense secretary could cause a government to fall in a sex scandal, what position was the Kennedy government in? JFK and Bobby were bagging women two at a time...and lots and lots of people knew it.
With LBJ as VP very powerful forces understood that Kennedy’s murder could and world be covered up.
“What position was the Kennedy government in?”
Sources say the missionary was preferred.