“The testimony was made by Alex Cifuentes, a convicted drug trafficker who worked for Guzmán as part of the Sinaloa cartel, and became so close that he described himself as the drug lord’s ‘right-hand man, his left-hand man.'” Buzzfeed: A Witness Testified That El Chapo Paid Former Mexico President Enrique Peña Nieto A $100 Million Bribe.