U.S. law enforcement officials expressed outrage over the release from prison of Mexican drug lord Rafael Caro Quintero and vowed to continue efforts to bring to justice the man who ordered the killing of a U.S. Drug Enforcement Administration agent. Caro Quintero was sentenced to 40 years in prison for the 1985 kidnapping and killing of DEA agent Enrique Camarena, but a Mexican federal court ordered his release this week, saying he had been improperly tried in a federal court for state crimes. The 60-year-old walked out of a prison in the western state of Jalisco early Friday after serving...