By Jaymi McCann/Published 15th October 2013
Calvin Parker has been hiding from unwanted attention for decades [AP]
Calvin Parker Jr said he encountered the UFO when he was 18 years old while fishing with his friend Chase Brandon.
And he has spent the past four decades shunning the press attention that the incident attracted.
He has moved jobs and home several times over decades to avoid being detected.
When questioned he said: "This is something I really didn't want to happen."
Parker and Brandon, then 42, were on the banks of the Pascagoula river in Mississippi in October 1973.
The pair were approached by a UFO with blue lights that made a zipping noise.
They were levitated and taken aboard the craft. Parker said they were then examined by what appeared to be a large floating eye.
He said: "They gave a thorough, I mean a thorough, examination to me just like any doctor would."
They were then left behind on the banks of the river.
It became one of the most high profile cases of a UFO experience in American history after Roswell.
UFO enthusiasts believe the government got hold of alien bodies in Roswell, New Mexico, in the 1940s and examined them.
The American government has spent decades denying it.
