For years, UFO researchers believed there were two ways to consider the fantastic story of Antonio Villas Boas: an unprecedented encounter with other-worldly beings, or a bit of weird fiction, maybe dreamed up by a bored young man.

But years after the story of Villas Boas came to light, a third option was presented when a man named Bosco Nedelcovik entered the scene. His version of the story involves a fancy helicopter and a few CIA officers. Which one is the truth? We lay out the facts, and you decide for yourself.