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USA: Forty years ago, the Pascagoula incident, in which two men said they encountered an unidentified flying object and its occupants, made headlines across America and sparked a new wave of reports of UFO sightings.

Now, the sole survivor of the case is still grappling with an encounter that turned his life upside down. Calvin Parker Jr said he harboured doubts about his encounter with what he said were grey, wrinkly-skinned and crab-clawed creatures.

He has spent decades moving around and changing jobs to avoid the unwanted attention. He was 18 when, on Oct 11, 1973, he went fishing with his friend, the late Charles Hickson, along the banks of the Pascagoula river in coastal Mississippi.