Mexico has extradited to the US a senior member of the Sinaloa drug gang formerly headed by Joaquin “El Chapo” Guzman.
Damaso Lopez is alleged to have been responsible for organising Guzman’s escape from a high security jail in 2001.
He then joined the cartel and became one of the drug lord’s closest allies.
He was captured last May and is seen by the US as a key witness in the case against Guzman who is in a US jail.
Damaso Lopez is known as “The Graduate” because he studied law and was a senior official in the Mexican prison administration system.