Grave Reveals Violent Death of Ancient Family

A grave with the remains of a mother and father huddled together with two sons has been dated to 4,600 years ago and marks the oldest genetic evidence for a nuclear family, researchers say.The individuals were carefully arranged in their graves to denote they were part of a biological family, the researchers say. Wounds on the remains suggest the parents and kids were defending themselves against a violent raid, involving stone axes and arrows, at the time of their deaths.

http://www.livescience.com/history/081117-family-grave.html