The designation also sanctioned Damaso López Núñez (alias "El Licenciado"), another Sinaloa Cartel chief who worked directly with Guzmán.
[9][10] His area of operations was in Durango and Sonora, particularly in the municipalities of Agua Prieta, San Luis Río Colorado, and Cananea, where he coordinated marijuana plantations and drug trafficking shipments through the U.S.-Mexico border in Arizona.
[13] At the time of his arrest, the authorities alleged that Coronel Barreras coordinated drug trafficking shipments for the Sinaloa Cartel from Mexico through the Arizona border crossing, and that he played an important role in the overall operations of Guzmán.
[19] The government confirmed, however, that three inmates escaped from the prison in Culiacán: Ramón Ruiz Ojeda, Adrián Campos Hernández, and Adelmo Niebla González (alias "El Señor"), a top drug trafficker for the Sinaloa Cartel and former business partner of Guzmán.
[20] On April 28, 2017, a federal judge in Sonora found Coronel Barreras guilty of marijuana trafficking and for being in possession of military-exclusive firearms.