Nemesio Rubén Oseguera Cervantes, known as “El Mencho,” leader of the Cártel Jalisco Nueva Generación (CJNG), was reported dead following a military operation in Mexico on February 25, 2026, according to reports from Univision and Milenio Televisión.
The operation, planned for nearly two years by Mexican authorities, culminated in Tapalpa, Mexico, according to a Facebook post detailing the events. Details released by N+ Univision show a step-by-step account of the operation that led to Oseguera’s death, along with the death of a high-ranking CJNG commander. The news broke on Sunday, February 23rd, with coverage continuing through the following week, marking one week since the event as of Sunday, March 1st.
The circumstances surrounding the operation remain largely undisclosed. Authorities have not released specific details regarding the forces involved or the precise sequence of events leading to the deaths of Oseguera and the other commander.
The death of “El Mencho” represents a significant development in Mexico’s ongoing struggle against drug cartels. The CJNG, under Oseguera’s leadership, has been responsible for a substantial amount of violence and criminal activity within the country. Cooperation between Mexico and the United States in combating drug trafficking has been a key factor in recent operations, though the extent of U.S. Involvement in this specific operation has not been publicly detailed.
As of Monday, March 2, 2026, no official statement has been released detailing the future leadership structure of the CJNG or the anticipated impact of Oseguera’s death on the cartel’s operations.