Good witness Jesús Zambada, it shows the dark side of the fight against drug trafficking.

El Chapo's defense is to increase the role of El Mayo and to put him before the jury as the de facto leader of the cartel.

The defense wants to show that the Sinaloa cartel under El Mayo and El Chapo was in cahoots with the American Drug Enforcement Administration (DEA) and two Mexican presidents: Felipe Calderón and Enrique Peña Nieto.