There were several U.S. Presidents assassinated. Lincoln, Garfield, McKinley, Kennedy. Other attempts made, notably on Reagan, and others were either shot at or had plans circumvented. I have never attributed Kennedy's Catholicism as a reason for his killing. The various assassins or would-be's were disaffected individuals who had bizarre reasons or motives. [Sorry, that was kind of off-topic for the thread, but so was the comment to which I replied].