Rwanda was done with machetes not machine guns.

My comment about "not related to any known" is based upon work done here at the University of Washington. Look at this:

http://www.sciencedaily.com/releases/2006/04/060425183740.htm

and I quote:

"Some Ainu?s facial features appear European. Their eyes may lack the Asian almond-shaped appearance, and their hair may be light and curly in color. However, this does not mean that Kennewick Man necessarily was European in origin. His features more closely resemble those of the natives of the Pacific Rim than those of Native Americans."

DA Morgan