José Vicente Castaño aka El Profe (born July 2, 1957 in Amalfi, Antioquia) is a Colombian paramilitary former leader of the United Self-Defense Forces of Colombia (AUC), a right-wing Colombian paramilitary organization. After demobilizing, he was accused of murdering his brother and former AUC leader Carlos Castaño and of narcotics trafficking by both the Colombian government and the government of the United States. In August 2004, the United States formally requested his extradition. Castaño remains, however, a fugitive and is the presumed chief of the criminal organization Águilas Negras made up of former AUC paramilitary members.