Despite formerly serving under Guzmán, López aimed to take control of the Sinaloa cartel and launched a bloody feud with El Chapo’s son for control in 2016, according to reports.
The Justice Department charged CEO Vincent Ramos and his associates of racketeering and conspiracy to facilitate drug distribution.
Prosecutors have requested a partially sequestered jury in Guzmán's trial.
Dámaso López-Serrano was said to have soured his relationship with El Chapo after fighting to seize control of the powerful Sinaloa Cartel.
He's escaped from prison twice — once in a laundry cart, and once in an underground tunnel starting in a shower.
Guards think the Bible could contain secret codes that would help El Chapo escape from jail.
The reputed Mexican drug kingpin may be worth as much as $14 billion, but the issue of payment could be crucial to his case and any asset forfeitures.
The Mexican drug kingpin spends up to 23 hours locked up and is not allowed to receive any visitors.
Filming for the series has been shrouded in secrecy, and Guzmán has launched legal appeals in Mexico against the producers.
Joaquin "El Chapo" Guzman, who escaped from two Mexican prisons and was a key figure in a bloody drug war, is seen as a flight risk by the U.S. government.
If reputed cartel boss Joaquin 'El Chapo' Guzman is convicted in the U.S., the probable outcome is life without parole at the Administrative Maximum Facility in Florence, Co.
Guzman was one of the world's most wanted drug kingpins until he was captured in January 2016. Six months earlier, he had broken out of a high-security penitentiary in central Mexico through a mile...
Five dead and 10 injured in attack on military convoy that was transporting a detainee.
Early on Saturday, Guzman was moved to a high security prison in the northern city of Ciudad Juarez on the U.S. border.