Sinaloa drug cartel leader "El Mayo" says in letter he was "kidnapped and forcibly brought to the U.S."

Sinaloa drug cartel leader Ismael "El Mayo" Zambada - in a letter written from prison and released by his lawyer  - details what he says led to his arrest in the United States.  

"El Mayo" and Joaquin Guzman Lopez, one of the notorious kingpin El Chapo's 12 children, were arrested near El Paso, Texas on July 25 without incident, federal authorities said. The arrest of Zambada, a U.S. fugitive for many years, "strikes at the heart of the cartel that is responsible for the majority of drugs, including fentanyl and methamphetamine, killing Americans from coast to coast," said DEA Administrator Anne Milgram at the time.

Guzman Lopez, 38, allegedly duped Zambada,76, into boarding a plane the day of their arrests, a person familiar with the investigation confirmed to CBS News, telling "El Mayo" they were going to look at property in Mexico. Guzman Lopez was said to have cut a deal with U.S. authorities on behalf of himself and his brother Ovidio Guzmán López.