Mexican authorities finally extradited one of the most wanted drug lords in the United States, signaling that the Latin American

Mexican drug lord Rafael Caro Quintero appeared before a judge in Brooklyn on Friday afternoon, pleading not guilty to charges related to his involvement in the decades-old killing of a Drug Enforcement Administration agent.

Rafael Caro Quintero was arraigned on multiple drug and weapons offenses in Brooklyn federal court following his extradition Thursday to the U.S. from Mexico.