Mexico’s most feared drug lord is dead, and now the country is burning in revenge. Nemesio “El Mencho” Ruben Oseguera Cervantes, 59, was shot during a military operation on Sunday, February 23, 2026, in Tapalpa, Jalisco, a small town about 90 miles southwest of Guadalajara. He died while being airlifted to Mexico City. The raid was carried out by Mexican special forces using U.S. intelligence support.
El Mencho led the Jalisco New Generation Cartel, known as CJNG, for more than 17 years. The U.S. Drug Enforcement Administration called CJNG “a key supplier of illicit fentanyl” that earns “billions of dollars” each year. The U.S. government had a $15 million bounty on El Mencho’s head, one of the highest rewards ever offered for a cartel leader. You can read more about the DEA’s designation of CJNG at DEA.gov.
A Country Set on Fire
Within hours of the killing, CJNG members responded with a wave of chaos. More than 250 road blockades using burning vehicles were reported across at least 20 of Mexico’s 32 states. Banks were raided. Shops were looted. A Costco in Puerto Vallarta was set on fire. Jalisco’s capital, Guadalajara, turned into a ghost town as residents were told to stay indoors.
Twenty-five National Guard officers were killed in six separate attacks in Jalisco alone, according to Mexico’s security secretary. Authorities arrested 70 people across seven states in connection with the post-raid violence. The U.S. Embassy issued a shelter-in-place order for American citizens in Jalisco, Michoacan, Guerrero, Tamaulipas and Nuevo Leon. Canada issued a similar warning for Puerto Vallarta.
White House press secretary Karoline Leavitt confirmed U.S. involvement in a Sunday night statement, saying the United States “provided intelligence support to the Mexican government” during the operation. She added that “President Trump has been very clear: the United States will ensure narcoterrorists sending deadly drugs to our homeland are forced to face the wrath of justice they have long deserved.”
From Small-Time Criminal to Cartel King
El Mencho did not start at the top. He dropped out of school at age 10 and began guarding marijuana fields at 14 in his home state of Michoacan. As a young man, he illegally immigrated to California, where he was convicted in 1994 of conspiracy to distribute heroin. He served three years in prison and was then deported back to Mexico.
Back on Mexican soil, he briefly worked for two police forces before returning to organized crime. He joined the Milenio Cartel and rose quickly by becoming its chief enforcer, or “chief of hitmen.” In 1996, he cemented his position by marrying Rosalinda Gonzalez Valencia, the sister of the Milenio Cartel’s leader, giving him the family ties and credibility he needed to climb further.
When the Milenio Cartel fractured after its leader’s arrest in 2009, El Mencho seized control and formed the CJNG. His first major move came in 2011, when cartel members dumped 35 badly tortured bodies on a busy highway during rush hour. It was a brutal announcement to all of Mexico: a new power had arrived.
17 Years of Extreme Violence
The years that followed were marked by a level of violence rarely seen even in Mexico’s troubled history. In 2015, CJNG gunmen killed 15 police officers in a single attack, the deadliest strike on law enforcement since 2010. That same year, cartel fighters shot down a military helicopter using a rocket-propelled grenade launcher. In 2019, nine bodies were found hanging from a bridge. Others nearby had been dismembered and decapitated. A note left at the scene read: “Be a patriot, kill a Viagra,” referring to a rival gang.
In 2020, CJNG operatives attempted to assassinate Mexico City’s then-police chief, Omar Garcia Harfuch, using sniper rifles and grenades. He was shot three times but survived. Teen recruits as young as 16 have reported being forced to eat the hearts of rivals they killed as a pledge of loyalty to the cartel. The CJNG is known to have an active presence in all 50 U.S. states, according to the DEA.
A Family Criminal Empire Now Dismantled
U.S. and Mexican authorities had spent years working to dismantle El Mencho’s inner circle before finally reaching him. His son, Ruben “El Menchito” Oseguera Gonzalez, was sentenced to life in prison plus 30 years in March 2025 after being convicted in the United States on drug and weapons charges. His brother Antonio, nicknamed “El Tony Montana,” was extradited to the U.S. in 2025. His wife Rosalinda, once the cartel’s financial chief, was arrested on money laundering charges.
By the time of his death, nearly every key figure in El Mencho’s family network was behind bars. Yet the cartel itself remained intact and operational, a sign of just how deeply its roots had grown. The full scope of CJNG’s operations is documented by the U.S. State Department, which designated CJNG a foreign terrorist organization in February 2025.
What Comes Next for Mexico and the Drug Trade
Experts warn that killing El Mencho will not stop the flow of drugs into the United States. “By no means is the removal of a kingpin effective for reducing the drug trade,” said Elijah Glantz, a research fellow at the Royal United Services Institute, a leading defense and security think tank. “We have seen this with Mexico and South America before during the previous four decades.”
With no clear successor, analysts say internal power struggles inside the CJNG are almost certain. The Sinaloa Cartel, already weakened by its own leadership battles, may try to move into CJNG territory. “What to watch for next is whether a successor emerges quickly or whether rival cartels try to carve up the territory,” said drugs expert Tony D’Agostino of TD Training and Consultancy.
The timing of the killing adds another layer of concern. Guadalajara is one of Mexico’s host cities for the 2026 FIFA World Cup, with playoff games scheduled just months away. Mexican President Claudia Sheinbaum has urged citizens to remain calm and called the operation a security success. But with 20 states still recovering from cartel reprisals and a power vacuum at the top of the CJNG, the violence may only be getting started.