Mexico descends into violence after cartel leader ‘El Mencho’ killed
Al Jazeera
February 23, 2026
AI-Generated Deep Dive Summary
Mexican authorities announced the killing of Nemesio Ruben Oseguera Cervantes, known as “El Mencho,” the leader of the powerful Jalisco New Generation Cartel (CJNG), in a shootout in his native state of Jalisco. The operation, which received U.S. intelligence support, has triggered widespread violence across Mexico, with cartel members blocking roads, setting vehicles ablaze, and disrupting normal life. Schools were closed in multiple states, and governments advised citizens to remain indoors as the situation escalated.
El Mencho, one of Mexico’s most sought-after criminals, was notorious for his brazen attacks on government officials and his role in trafficking fentanyl, methamphetamine, and cocaine into the United States. His cartel, formed around 2009, has grown into one of the country’s most powerful and aggressive criminal networks. The CJNG is known for its innovative tactics, including using drones to launch explosives and planting mines. This includes a high-profile assassination attempt in Mexico City in 2020, where grenades and high-powered rifles were used against the then-head of the capital’s police force.
President Claudia Sheinbaum urged calm following the violence, as authorities reported clearing over 250 roadblocks across 20 states by late Sunday. While the Mexican government celebrated the operation as a significant blow to organized crime, critics argue that targeting cartel leaders often leads to increased violence as remaining members fight for control. This strategy has been particularly contentious under Sheinbaum’s tenure, who has faced pressure from both domestic and international stakeholders, including former U.S. President Donald Trump, to address drug trafficking and security challenges.
The killing of El Mencho also highlights the ongoing tensions between Mexico and the U.S. regarding drug cartels. The U.S. had offered a $15 million reward for information leading to his capture, reflecting the transnational nature of organized crime. While the operation was praised by the White House, it underscores the complex challenges faced by both nations in combating powerful criminal networks that have far-reaching impacts on regional security and stability.
This incident underscores the fragile state of security in Mexico and the broader implications for international drug trafficking routes. The violence following El Mencho’s death raises questions about whether targeting high-ranking cartel leaders effectively disrupts organized crime or simply shifts power dynamics among competing groups.
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Originally published on Al Jazeera on 2/23/2026