Jesus Zambada is shown in this undated photo provided by the U.S. Attorney&#39;s Office for the Eastern District of New York. Once a top lieutenant in drug lord Joaquin &quot;El Chapo&quot; Guzman&#39;s cartel, Zambada is now a cooperating witness describing the Sinaloa cartel&#39;s history of greed, cunning and violence as it built a cocaine-smuggling empire that made billions of dollars by flooding the market in large U.S. cities.