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http://www.kgw.com/article/news/inv...-a-face-to-unidentified-remains/283-513607993
Investigators analyzed the oxygen isotopes in the victim’s hair. This testing looks at the minerals found in drinking water, then compares it with the minerals found in the water supply in various regions in the country.
Based on the testing, investigators believe the victim moved in the two months prior to his death. Lab results suggest he moved from a cooler climate, back to a warmer climate, and then returned to a cooler climate immediately before his death.
Investigators believe the victim was from Florida or Texas, based on the testing.