Forget the dubious mythology about Cain murdering Abel. There's a real murder case which is almost as ancient. About 600 years before anybody thought about building pyramids along the Nile, a tattooed hunter a thousand miles to the north of Egypt, in what is now the Italian Alps, was slain with an arrow. Today, no one knows why he was killed; love, jealousy, greed, envy, fury, politics, religion or sport (humans are the most savage of species), but the body was left in a snow-field high in the mountains. It froze and got drawn into a glacier, one of those crawling rivers of ice which slither off the Alps. Time past. Ten thousand wars were fought. Whole civilizations rose and fell. After 5300 winters in the snow, the preserved corpse, now familiarly known as "The Iceman," was finally found in 1991, the most ancient preserved body in the world, murdered. Was there an Italian Mafia that long ago?