Who is Le War Lance from the book, On the Rez?

Le War Lance is an Oglala Sioux who Frazier befriends while they both live in New York. Much of the narrative centers around this friendship as Le escorts Frazier around the Pine Ridge Reservation; in fact, Le considers Frazier to be his brother despite the differences in their heritages. While living in New York, Frazier meets Le War Lance, an Oglala Sioux, and the pair develop a long-lasting friendship.