CSI Europe is on the case. This half-decomposed body was found by hikers in Northern Italy has brought out the
best forensic scientists. They have named this John Doe "Ötzi".
Water in the area where Ötzi was found varies in oxygen isotope ratio because rainfall to the north comes from the cooler and more distant Atlantic Ocean, while that to the south comes from the warmer and closer Mediterranean.
Analysis of Ötzi’s tooth enamel indicates that between the ages of 3 and 5 he was drinking water with isotope ratios found only to the south of where he was found frozen.
However, bone analysis of the isotope level ingested as an adult shows a contribution from both northern and southern water sources, something the researchers said could indicate migration into one or more of several nearby valleys.
The isotope ratios for strontium and lead vary depending on the types of rock and soil in an area. The scientists also analyzed the argon ratio of bits of mica found in the intestine, believed to have been ingested as a result of eating stone-ground grain.
Cause of death has already been determined:
Earlier studies have indicated that Ötzi was between 25 and 40 when he died, suffered from arthritis and had an arrowhead embedded in a shoulder, probably the cause of death.
Problem is, Ötzi was killed 5,200 years ago.
The trail for the killer might be a little cold by now.