Answer:
In November 1961, in Asmat, one of the remote areas of New Guinea, Michael Clark Rockefeller, the son of an American billionaire, disappeared. This message caused a sensation precisely because one of the Rockefellers disappeared: after all, on Earth, unfortunately, every year, without causing much fuss, a considerable number of researchers die and go missing. Especially in places like Asmat, a gigantic, jungle-covered swamp.