A top Sinaloa cartel leader has plead guilty in Chicago, and he could play a big role in 'El Chapo' Guzman's trial

REUTERS/Daniel Aguilar CHICAGO (AP) — A former top lieutenant to Joaquin "El Chapo" Guzman and likely witness at the Mexican drug lord's New York trial has pleaded guilty to trafficking conspiracy in Chicago, saying in a plea agreement unsealed Friday that he will cooperate with prosecutors in hopes of a reduced sentence and protection from cartel retribution for his family. The 19-page plea deal, posted in Chicago federal court, says 43-year-old Vicente Zambada pleaded guilty to charges in a ...