U.S. adds Guatemalan man with alleged Zetas ties to drug kingpin list

(CNN) -- The U.S. Treasury Department added a Guatemalan man to its drug kingpin list Tuesday, describing him as a "critical link" between Colombian drug producers and Mexico's Zetas cartel. The department's naming of Horst Walter Overdick Mejia as a narcotics trafficker freezes any assets he may have under U.S. jurisdiction and prohibits financial and commercial transactions with him.