Rupert Steele, the chairman of the Confederated Tribes of the Goshute Indian Reservation — who long advocated for his people on many fronts — died early Thursday at age 69, according to his family.Rupert Steele, the chairman of the Confederated Tribes of the Goshute Indian Reservation — who long advocated for his people on many fronts — died early Thursday at age 69, according to his family.