"El Mencho," the notorious cartel leader killed in Mexico, had a violent history

February 23, 2026

TL;DR

Nemesio Rubén Oseguera Cervantes, leader of the Jalisco New Generation Cartel (CJNG) and known as "El Mencho," was killed in a military operation in western Mexico.
His death triggered violent clashes, resulting in six other deaths and several arrests, with authorities seizing weapons and armored vehicles.
Oseguera Cervantes was wanted by the U.S. for trafficking large quantities of fentanyl and other drugs, with a $15 million reward offered for his arrest.
CJNG is heavily involved in drug manufacturing, trafficking, and distribution, including fentanyl, methamphetamine, and cocaine, alongside money laundering operations.
The cartel has a history of extreme violence, including assassination attempts, downing a military helicopter, and allegedly luring and torturing potential recruits.
El Mencho's son, Rubén Oseguera ("El Menchito"), was sentenced to life in prison in the U.S. on drug and weapons charges.

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