PHOENIX - A Mexican teenager killed when the U.S. Border Patrol opened fire on a group of rock throwers in Mexico last year was shot at least seven times from behind, an autopsy by Mexican authorities showed.

Jose Antonio Elena Rodriguez, 16, was shot as agents fired into Nogales, Mexico, after responding to reports of drug trafficking on Oct 10.

An attorney acting for the Elena Rodriguez family, Luis F. Parra, released a copy of the Mexican medical examiner's report on Thursday.

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