Mystery at Chaco Canyon ... According to Christy G. Turner II, an anthropologist and regents professor at Arizona State University, invaders from Mexico practised cannabalism at Chaco.
During the period of 900-1200 AD, invaders from what is now central Mexico indulged in mass-murder “feeding sessions” of several days. At least 300 Hisatsinom were eaten, some of them children.
Distinctive teeth marks on the bones of the victims offer proof of the identity of the attackers, who commonly practiced implanting jewels such as jade and turquoise in their teeth.
http://www.ausbcomp.com/redman/hisatsinom.htm
fyi ping....
Christy Turner is a good source.