Entombed in a glacier in the Alps for more than 5,000 years, the Iceman is the oldest mummy ever discovered. Scientists now know he was murdered in cold blood, but why? In 2007, National Geographic sponsored a series of new CT scans that revealed three potential motives. Was the Iceman assassinated, a victim of clan warfare or part of a ritual murder? Forensic clues surrounding his death continue to illuminate the origins of conflict and violence in the Copper Age.