U.S. prosecutors said they want the Mexican drug lord Joaquin "El Chapo" Guzman to spend the rest of his life — plus 30 years — in prison, after he hears from a victim who survived one of his murder plots.

Guzman, 62, faces a mandatory minimum of life in prison at his scheduled sentencing hearing next Wednesday, following his February conviction on a variety of drug charges.

In a Wednesday night letter, prosecutors asked U.S. District Judge Brian Cogan in Brooklyn to add another 30 years because jurors convicted Guzman of illegally using a firearm, including a machine gun, in connection with drug trafficking.