One of the great mysteries of the 20th century was the 1961 disappearance and presumed death of Nelson Rockefeller's son, Michael, in New Guinea. The 23-year-old was believed to have drowned when his canoe capsized. An anthropologist who accompanied him on the journey managed to survive but Michael presumably did not. However, rumors became rife then and for decades thereafter that Michael did survive and swam to shore, but he was promptly taken prisoner by a native tribe, tortured, killed, and then eaten.
There are at least two books out that claim this indeed happened, and both of them are on my Amazon.com wishlist. Savage Harvest is the far more recent book. It was published last spring. There is also a documentary out which also promotes the cannibalism angle of Michael Rockefeller's presumed death. It is claimed by author Carl Hoffman that the cannibal theory is indeed true based upon evidence he has uncovered. Researching briefly into this, I have found there are still doubts about the theory.
Whatever the case, I am going to get that book and the other one about the disappearance.