El Mayo was thought to be more involved in the day-to-day operations of the cartel than his better-known and flashier boss, El Chapo, who was sentenced to life in prison in the US in 2019.

El Mayo, Ismael Zambada Garcia, who took over as leader of Mexico's Sinaloa cartel from El Chapo, has a $15 million reward on his head.

Joaquin "El Chapo" Guzman has been granted access to his lawyer days after complaining he was being subjected to isolation at ...