Published: Dec 29, 2011 12:11 AM EST

MORELIA, Mexico (AP) - Mexican prosecutors say teeth and clothing remnants were used to identify a suburban Chicago teenager whose charred remains were found on Christmas Eve in western Mexico.
    
The bodies of 18-year-old Alexis Marron of Rolling Meadows and two Mexican friends were found in a burned-out car in rural Michoacan, a western state plagued by violence linked to drug trafficking.
    
Prosecutors' documents obtained Wednesday by The Associated Press quote an uncle saying Marron was on his way to see a girlfriend, apparently without telling some of his relatives.
    
Marron was a U.S. citizen and high school student. His family was from Michoacan.
    
Friends in suburban Chicago have been holding vigils and setting up memorial Facebook pages.

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