Nemesio Rubén Oseguera Cervantes, known as "El Mencho," was the leader of the notorious Jalisco New Generation Cartel prior to his death on Sunday.

Before he become one of Mexico's strongest kingpins, 'El Mencho' had started his drug business career in San Francisco throughout the 1980s.

Times reporters visiting Tapalpa found a serene town in shock after Sunday’s raid on its outskirts left dozens dead and people fleeing. And, surprisingly, no police or military presence where the battle took place.

Death of cartel boss El Mencho could impact America's ongoing fentanyl crisis as his organization allegedly caused hundreds of thousands of overdoses.

Officials identified “El Tuli” as a top CJNG logistics and financial operator who acted as a right-hand man to "El Mencho."

The Secretary General of National Defense, General Ricardo Trevilla Trejo, informed that Nemesio Oseguera Cervantes, alias “El Mencho”, was located thanks to a meeting he had in Tapalpa, Jalisco, with his romantic partner, who is apparently Guadalupe Moreno Carrillo.

Documents reveal the fall of “El Mencho" was the culmination of an aggressive “total elimination" strategy pursued by the U.S. against the Jalisco New Generation Cartel (CJNG).

Mexican drug lord 'El Mencho' died in a military operation. Learn about his violent cartel and why he faced federal drug charges in Mississippi. What we know

Personal belongings inside the house where Mexican drug cartel leader Nemesio Oseguera, better known as 'El Mencho', spent his final hours before he was injured in a military raid and subsequently died while being transported in a helicopter, outside Tapalpa, Mexico, February 24, 2026. REUTERS/Liberto Urena

The BBC's Will Grant examines the power wielded by the Jalisco drug cartel chief, who died after a clash with security forces assisted by US intelligence.

Nemesio Rubén Oseguera Cervantes, known as "El Mencho," was arrested in the U.S. multiple times before rising to lead the CJNG.