"Watch as the story of Otzi the Iceman first revealed in Discovery's Ultimate Guide: Iceman takes a murderous turn. Discovered in the Italian Alps in 1991, the Stone Age body of Otzi is the oldest, best-preserved mummy on Earth. But the details of this cold case, frozen in time for eons, are only now beginning to thaw. Questions surrounding the arrowhead found lodged in Otzi's back lead to an investigation of the oldest, unsolved homicide in history. Just who was Otzi's killer? And, why was he murdered? Follow the trail to the snowy drifts where Otzi was found. Dr. Edward Egarter, Otzi's caretaker, along with Alois Pirpammer, one of the first people to discover the prehistoric mummy, scour the crime scene for clues. A crude knife is found at the site a knife whose blade perfectly matches the long, deep wound found on Otzi's right hand. Could this be related to the attack from the bowman? Back at the lab, experts focus on the telling arrowhead embedded in Otzi's left shoulder. Special 3D scans made of Otzi's body give scientists an exact image of the stone weapon. By matching the characteristics of the arrowhead with archaeological records of similar weapons, Dr. Egarter is able to pinpoint the valley from which it originated revealing that Otzi and his killer did not live far from each other. Further examination of the arrowhead removes suspicion of accidental death the arrowhead's triangular shape matches those used by ancient, expert marksmen determined to make a sure kill. That, coupled with the killer's precise aim, proves one thing: This was no accident." -- "Discovery Channel Website"