Former Mexican drug kingpin denies killing US agent

One of Mexico's most notorious drug lords, wanted by the United States for the 1985 murder of an undercover agent, spoke out from hiding in an article Sunday to deny involvement in the killing. Rafael Caro Quintero, founder of the now defunct Guadalajara cartel, the country's most powerful drug trafficking network in the 1980s, denied murdering the Drug Enforcement Administration officer and apologized for involvement in trafficking during an interview with prominent news magazine Proceso. Caro Quintero, who served 28 years of a 40-year sentence in a Mexican prison for the murder, was freed over a legal technicality in 2013 and then vanished.