KENNEDY, John Fitzgerald (Jack; JFK) May 29, 1917 – November 22, 1963.  The  35th President of the United States from January 1961 until his assassination in November 1963.

John F. Kennedy was a mid-twentieth-century representative of the self-confident catholic response of encounter with the American environment. He symbolised those forces which John Ireland and Al smith represented at earlier times in different contexts. He believed with other presidential heroes that religious faith is a personal affair, that ecclesiastical authorities had no special claim over public officials, and that God had placed man on earth to exercise freedom and excellence in achievement, and that it was up to individual men and women and the United States of America to fulfil God’s purpose. To Kennedy, there was nothing in these beliefs which was incompatible with the sectarian religion of his birth, including its theology and authoritarian form of church government. Because he was a Catholic, representing the one sectarian religion thought to be at odds with the culture-religion of Americanism, Kennedy, as a culture-hero, helped to broaden the basis of consensus in American life by encouraging the forces of encounter within American Catholicism, and by opening the minds of non-Catholics to new opportunities for human communication, learning and growth in dialogue with Catholics.  

Lawrence H. Fuchs, John F. Kennedy and American Catholicism (New York: Meredith Press 1967), 224.

Re: Conspiracy theories regarding Assasination:

And what are the odds of even a crack shot making those hits on the small and moving target of the president from that distance through intermittent tree cover?"

About 96%

Years ago my Knights of Columbus council's right-to-life coordinator was a retired FBI agent. He had just joined the Bureau when the assassination occurred, and since he was stationed in New Orleans he got the job of going through the entire library looking for books Oswald had read. He found 4, 2 on shooting and 2 novels on political assassinations.
But the most fascinating story, to me, was his account of how the U.S. built a re-enactment of the shooting scene at a military base, with a limo filled with dummies drawn along a car wash style track. One hundred riflemen were drawn at random from various units, put in a tower that simulated Oswald's window, and told to kill the president. Ninety-six succeeded.
He didn't mention any simulation of the tree cover, but given that number it seems a trivial issue.

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