Who was El Mencho? All you need to know about the CJNG cartel leader

Nemesio Ruben Oseguera Cervanteswidely known by his alias El Menchowas one of the most feared and powerful drug cartel leaders in Mexico. As the head of the Jalisco New Generation Cartel (CJNG), he dominated drug trafficking routes and constructed a violent criminal empire that spanned continents. His recent death has sparked nationwide unrest and marked a major turning point in Mexico’s ongoing battle against organized crime.

Early Life and Rise to Power

Born into poverty in Mexico’s Michoacán state, El Mencho dropped out of school early and migrated to the United States in the 1980s, where he began his criminal journey. After several arrests and a deportation back to Mexico, he joined the Milenio Cartel, a powerful drug syndicate. Over time, he rose through the ranks and, in 2009, helped establish the Jalisco New Generation Cartel. Under his leadership, the CJNG transformed from a regional criminal gang into one of the most violent and influential drug trafficking organizations in the world.

CJNG: A Global Criminal Enterprise

Under El Mencho’s command, CJNG expanded its reach beyond Mexico’s borders, engaging in large-scale trafficking of cocaine, methamphetamine, heroin, and fentanyl. The cartel became infamous for its brutal tactics, including ambushes on law enforcement, mass assassinations, and coordinated acts of terror against rival groups. Its influence extended into North America, Europe, and beyond, making El Mencho one of the most wanted fugitives by law enforcement agencies in multiple countries.

Life as a Fugitive and Notoriety

For years, El Mencho evaded capture despite massive military operations targeting him. The United States had placed a bounty of $15 million for information leading to his arrest, reflecting his status as one of the world’s most dangerous criminals. His ability to elude authorities for decades contributed to his nearly mythical reputation within the criminal underworld.

Death and Aftermath

On 22 February 2026Mexican security forces killed El Mencho during a high-risk military operation in the western state of Jalisco. The raid led to fierce clashes, and El Mencho died from his injuries while being flown for medical treatment. His death, confirmed by the Mexican army, has sparked violent reprisals by cartel members, including road blockades, burning vehicles, and widespread unrest across several states.

Impact on Mexico and the Drug War

El Mencho’s death is being seen as a significant blow to the CJNG and to drug trafficking networks in Mexico. However, experts warn that the potential for internal power struggles and further violence remains high. The Indian Embassy in Mexico even issued warnings to Indian nationals in the country to stay safe amid the instability that followed the cartel leader’s demise.


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