K. Bailey 
Human Paleopsychology [PDF ebook] 
Applications To Aggression and Patholoqical Processes

First Published in 1986. In this book the author seeks to demonstrate his believe that any credible view must grapple not only with human distinctiveness (e.g., learning capacity, language, rationality, and culture), but the dark sides of senseless violence and social disorder as well. Any such grappling with the dark side must necessarily confront our animal natures as well as our distinctly human natures.