In case anyone was curious about the actual archaeological data on this subject, Our World In Data put together an interesting meta-study presentation that covers the topic here, with a fairly extensive biography should you want to do further research on one particular group or era:
Ethnographic and Archaeological Evidence on Violent Deaths
Some of the numbers are pretty horrifying, suggesting (for example) that over 60% of total deaths among the South Dakota Creek ca. 1325 were human-inflicted. North American Indian tribes prior to European contact appear to have been extraordinarily violent even compared to other tribal societies around the world.