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Bitesized UFOs #077: Weird Lights, Sounds & Beings, April 1966
A park near Denver, April 1966: six teenagers enjoying an after dark picnic were startled by footsteps on the top of the shelter they were sitting in. They also heard a weird buzzing sound & some of them saw a very tall humanoid figure. But that wasn't all they experienced that night...
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https://www.youtube.com/watch?v=Uly5kNK9vGg