While Wassing was eventually rescued when floating in the Arafura Sea, Rockefeller was never seen again.
While his official cause of death was ruled as drowning, many believe that he washed ashore and was cannibalised by the Asmat tribe.
An author who researched in depth what happened that day has finally revealed the truth of what happened, and even the last words he ever spoke.
According to him, the last thing Rockefeller said before embarking on a 10-mile swim through a crocodile infested stretch of water was: “I think I can make it.”