Paul Raffaele in Smithsonian Magazine:
Cannibalism was practiced among prehistoric human beings, and it lingered into the 19th century in some isolated South Pacific cultures, notably in Fiji. But today the Korowai are among the very few tribes believed to eat human flesh. They live about 100 miles inland from the Arafura Sea, which is where Michael Rockefeller, a son of then-New York governor Nelson Rockefeller, disappeared in 1961 while collecting artifacts from another Papuan tribe; his body was never found. Most Korowai still live with little knowledge of the world beyond their homelands and frequently feud with one another. Some are said to kill and eat male witches they call khakhua.
More here.
