John F. Kennedy, the 35th president of the United States, is often ranked among Americans’ most well-liked presidents. Yet what most Americans don’t know is that JFK’s historic presidency almost ended before it began --- at the hands of a disgruntled sociopathic loner armed with dynamite. On December 11, 1960, shortly after Kennedy’s election and before his inauguration, a retired postal worker named Richard Pavlick waited in his car on a quiet street in Palm Beach, Florida. Pavlick knew the president-elect’s schedule. He knew when Kennedy would leave his house. He knew where Kennedy was going. From there, Pavlick had a simple plan --- one that could’ve changed the course of history.