This publication (http://www.nature.com/articles/nature16477.epdf?referrer_access_token=8_PMiZZPzTI8IXIUbX12fdRgN0jAjWel9jnR3ZoTv0PAIwkAzho9qL3jGwTvR7deCp37lljpjfKQsmSyyzaczGe_6BiZI49U2Ux7dUO_79V8X-yg2-emtS55e71cnCD88cMy1desl99WGm4JhiT9GOzpp6mvF3evaR7GBeDMCm4%3D&tracking_referrer=www.bbc.co.uk) in Nature magazine features what looks like the remains of a clan wiped out by warfare at Nataruk, lake Turkana, Kenya c.10,000 BC.
The discovery of weapon points in some of the skeletons brought the numerous authors to this collaborative conclusion.
Time for Duncan to propose extending the Book 1 dates forwards again...
... or would that be backwards?