FILE - An undated file photo of Enrique Kiki Camarena, the U.S. Drug Enforcement Administration, DEA, agent, murdered in Mexico in 1985. In the U.S., outrage grew over the surprise decision to overturn Mexican drug lord Rafael Caro Quinteros conviction for the 1985 slaying. Caro Quintero walked free Friday, Aug. 9, 2013, after a federal court overturned his 40-year sentence in Camarenas kidnapping, torture and murder. (AP Photo, File)

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FILE - An undated file photo of Enrique Kiki Camarena, the U.S. Drug Enforcement Administration, DEA, agent, murdered in Mexico in 1985. In the U.S., outrage grew over the surprise decision to overturn Mexican drug lord Rafael Caro Quinteros conviction for the 1985 slaying. Caro Quintero walked free Friday, Aug. 9, 2013, after a federal court overturned his 40-year sentence in Camarenas kidnapping, torture and murder. (AP Photo, File)