FILE - In this courtroom sketch, Ismael El Mayo Zambada, center, is seated beside his defense attorney Frank Perez, left, in federal court in the Brooklyn borough of New York, Sept. 13, 2024.

Zambada and Joaquin Guzman Lopez, 35, the son of notorious narco "El Chapo," were arrested at the Dona Ana County International Jetport in Santa Teresa, just outside El Paso, on July 25.

El Mayo's son took a differing path. Jesús Vicente Zambada Niebla, known as "El Vicentillo," turned on the cartel and is now in witness protection, the ABC 7 I-Team has learned.

FILE - In this courtroom sketch, Ismael El Mayo Zambada, center, is seated beside his defense attorney Frank Perez, left, in federal court in the Brooklyn borough of New York, Sept. 13, 2024.