Scientists study the world's oldest mummy, a 5,300-year-old prehistoric man called ""Otzi"", discovered in the Alps in September 1991. The discovery of an arrowhead lodged in the mummy's back suggests that the Iceman may have been murdered. Forensic techniques are used to examine the various theories surrounding how and why the mummy died.
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Ready to Watch Unsolved History, Season 1, Episode 7?