Cop turned crime boss, Nemesio ’El Mencho’ Oseguera leaves bloody legacy

Mexican drug lord Nemesio Oseguera, commonly known as 'El Mencho,' died in a military raid in Mexico City on Sunday, February 22, 2026, at the age of 60, ending the reign of the former police officer who transformed into one of Mexico's most powerful crime bosses and masterminded the bloody operations of the Jalisco New Generation Cartel. Oseguera, who had evaded capture for years despite a $15 million U.S. bounty, was the shadowy leader of the CJNG, an international criminal enterprise that has been blamed for smuggling vast quantities of drugs, including the deadly synthetic opioid fentanyl, into the United States. His death represents a significant victory for Mexican and U.S. authorities who have been hunting him for over a decade. The former police officer rose from humble beginnings in the mountainous Michoacan state, where he worked in poppy fields before seeking his fortune in the U.S. heroin trade. After serving time in an American prison and being deported, he joined the Milenio Cartel before striking out alone to establish the CJNG, which grew to rival even the powerful Sinaloa Cartel once led by Joaquin 'El Chapo' Guzman. Oseguera became notorious for his extreme brutality, employing beheadings and other gruesome methods of intimidation. In one six-week period in 2015 alone, his gang killed two dozen police officers in western Mexico as a warning to authorities. He also demonstrated his ability to evade capture in spectacular fashion, most notably in 2015 when his henchmen shot down a military helicopter with a rocket-propelled grenade to allow his escape. Despite his violent reputation, Oseguera cultivated a complex public image, maintaining relative obscurity compared to media-savvy El Chapo while simultaneously building political connections and even gaining some community support. Security experts note how he managed to evade U.S. and Mexican authorities for years, much like the heads of the Sinaloa cartel. The CJNG under his leadership diversified into numerous criminal enterprises including stolen fuel, forced labor, and human trafficking. Perhaps surprisingly, during the 2020 coronavirus pandemic, footage showed people lining up for CJNG-stamped food packages distributed by cartel gunmen, not government workers, leading one expert to remark that compared to the Mexican government, El Mencho was 'the least bad option' for some communities. His death leaves a power vacuum in one of Mexico's most powerful criminal organizations, with uncertain implications for the country's already violent drug war.