It was sunny and the sky was clear on the day President John F. Kennedy was shot, but there was one man standing along the motorcade route with a black umbrella over his head.

He stood near where the shots were fired, and numerous conspiracy theories sprang up around what the man was doing there with his umbrella.

Josiah Thompson, a young, Yale-educated man asked that the man come forward and explain himself, and the man went to Washington to testify.

Academy Award-winning filmmaker Errol Morris recently conducted a six-hour interview with Thompson about Kennedy's assassination and the person Thompson nicknamed "The Umbrella Man."

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