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NEVADA (PIX11) — Before his death at 78 years old, an alleged former engineer with Lockheed Martin and Texas Instruments claimed he encountered aliens and other strange things at Area 51 — and offered up “proof” for a documentary.

Boyd Bushman revealed that in his more than 40 year career he saw aliens at the US Air Force facility.

Bushman said the aliens, which are divided into two groups, don’t look like the Hollywood version of extraterrestrials.

“There are two groups of aliens,” he said. “They divide them into two groups. One group are wranglers, and the others are rustlers, the ones who are stealers of cattle. The two groups act differently. The ones that are wranglers are much more friendly, and have a better relationship with us.”

According to Bushman, the aliens communicate using telepathy.

Bushman also shared photos of alleged flying saucers and says he personally worked on anti-gravity technology.

Detractors point out that the photos of the aliens Bushman shows look very similar to alien dolls sold in stores.

Bushman passed away on August 7.