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Two teenage friends are dead after drinking a lethal concoction of racing fuel and Mt. Dew they apparently thought was a substitute for alcohol.

Officials say 16-year-old Logan Stephenson, of Greenbrier, Tenn., was found dead last Thursday in his bed, while his best friend J.D. Byram died on Tuesday, WKRN-TV reported.

Since the incident came to light, two other local teens have admitted to drinking the mixture they called "Dewshine."

Greenbrier police are encouraging parents to talk to their children if they were present at the gathering.

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