Mexican cartel leader pleads guilty to drug charges Posted byadmin October 24, 2009 A Mexican cartel leader, best known as the brother of the man who killed DEA Agent Enrique “Kiki” Camarena, pleaded guilty in Denver, Colorado, to drug trafficking charges on Friday. Related posts: Drug cartel allegedly plotted to kill Mexican leader Man pleads guilty to racial threat using fake Facebook account Mexican drug cartel suspect opens up about operations Top Mexican cartel leader arrested, military says Madoff’s finance chief pleads guilty to fraud, other charges