The 75-year-old led the cartel for four decades before his arrest last year, during which officials say he was tricked into ...

The guilty plea caps a stunning reversal of fortune for Ismael "El Mayo" Zambada, who, with "El Chapo" Guzman, ruled the ...

"El Mayo," former leader of the dangerous Sinaloa Cartel, which smuggled billions of dollars of drugs into the U.S., was ...

Former Mexican drug kingpin Ismael "El Mayo" Zambada admitted in a U.S. courtroom on Monday to ordering murders and shipping ...

Former Mexican cartel kingpin Ismael “El Mayo” Zambada has pleaded guilty to federal charges related to his role in the ...

Ismael Mario Zambada García, the former drug lord and top leader of the Sinaloa cartel known as El Mayo, will plead guilty to ...

Ex-Mexican cartel leader Ismael "El Mayo" Zambada Garcia pleaded guilty Monday to federal charges related to his role as a co ...

U. S. Attorney General Pamela Bondi and Terrance C. Cole, Administrator of the U.S. Drug Enforcement Administration speak as ...

El Mayo's son took a differing path. Jesús Vicente Zambada Niebla, known as "El Vicentillo," turned on the cartel and is now in witness protection, the ABC 7 I-Team has learned.