the eldest brother, piyiti, returned to the desert in 1986. he left in secret and covered his tracks so nobody could follow him. it is not clear why he left, or whether anyone knows why. one local claimed it was because he had heard stories about pintupi people dying from diseases, and was afraid it would happen to him. mcmahon thinks it was because he found it hard to adapt (adjust) to things—particularly conflict, since he had lived all his life with his family. there are different theories about what happened to piyiti. some people think he is still living in the desert. warlimpirrnga, in an interview in 2004, claimed to have seen piyiti in alice springs, and said he now calls himself "yari yari".