Topic - Pedro Flores

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This photo combination shows three former associates of Mexican drug lord Joaquin &quot;El Chapo&quot; Guzman who are now cooperating with the United States Attorney's Office in Guzman's prosecution. From left are Tirso Matinez Sanchez, Pedro Flores and Jorge Milton Cifuentes Villa. (U.S. Attorney's Office, Matinez Sanchez; U.S. Marshals Service, Flores; Ariana Cubillos, Cifuentes Villa)

Colorful cast of cooperators put the heat on El Chapo

By TOM HAYS and CLAUDIA TORRENS - Associated Press

Chicago drug trafficker testifies against El Chapo at trial

By TOM HAYS - Associated Press