Clyde Bellecourt, a Native American civil rights leader who founded the influential group American Indian Movement (AIM), died Tuesday of cancer at the age of 85, his wife, Peggy Bellecourt, and …Clyde Bellecourt, a Native American civil rights leader who founded the influential group American Indian Movement (AIM), died Tuesday of cancer at the age of 85, his wife, Peggy Bellecourt, and …