Umbrella Man.

One of the only two people at the scene of JFK's assassination caught on camera who were not questioned by the FBI. He was nicknamed the Umbrella Man as he was holding up an umbrella despite the sunny weather. Seconds before the president was shot, he began to spin the umbrella clockwise, which caused many people to speculate whether he was signalling the assassin or even shooting the president with a gun mechanism build into the umbrella.