Here’s something I didn’t anticipate when I was writing Into the Fire: by the time you’re reading this, the man who led the cartel that inspired my villain organization is dead.
On February 22, 2026, Mexican military forces killed Nemesio Oseguera Cervantes — known as “El Mencho” — in Tapalpa, Jalisco. He was the founder and undisputed leader of the Jalisco New Generation Cartel, or CJNG, the criminal organization that served as the blueprint for the antagonists in Into the Fire. The operation sent shockwaves across Mexico. Within hours, the cartel retaliated with roughly 250 roadblocks in twenty states — burning vehicles, attacking soldiers, shutting down highways. Even decapitated, the CJNG demonstrated exactly what makes it so terrifying: it doesn’t need one man to function. It was built to survive.
That’s what drew me to them as the unseen force in Mason’s world.
So Who Are the CJNG?
The Jalisco New Generation Cartel split off from the Sinaloa Cartel around 2010. Within a decade, they’d gone from a regional upstart to one of the most powerful criminal organizations on the planet. By 2025, they were officially designated a Foreign Terrorist Organization by the U.S. State Department — something reserved for groups like ISIS and Hezbollah. That designation wasn’t rhetorical. It was earned.
The CJNG operates on what analysts call a franchise model. El Mencho set strategy at the top, regional commanders ran day-to-day operations, and local cells executed on the ground — often recruiting from military and police ranks. The result is an organization with genuine command structure, discipline, and reach across most of Mexico and into major U.S. cities. They’re not just criminals. They’re an insurgent force.
And they fight like one.
Military-Grade Violence
In 2015, CJNG gunmen used rocket-propelled grenades to shoot down a Mexican military helicopter. Let that sink in. A cartel shot down a helicopter. When Mexican forces raided El Mencho’s compound this past February, they seized rocket launchers capable of doing it again.
The cartel has assassinated politicians, judges, and law enforcement officers. They conduct public executions and post the footage on social media as a deliberate intimidation tactic. In 2025, investigators discovered a CJNG training camp in Jalisco — the Izaguirre Ranch — where the remains of hundreds of their own recruits were found. Whatever happened there, it underscores just how disposable human life is within their organization.
These aren’t guys who get rattled. These are guys who use mass graves as a management tool.
The Fentanyl Machine
Beyond the violence, the CJNG is one of the primary drivers of the fentanyl crisis killing Americans every single day. They operate a sprawling network of drug labs — by 2018, estimates placed them at over 100 methamphetamine labs alone — with revenues in the billions annually. The DEA has called them a key supplier of illicit fentanyl to the United States. They don’t just move product. They manufacture it at industrial scale.
Their financial arm, a group called Los Cuinis, laundered hundreds of millions of dollars across multiple countries. This isn’t a street gang. It’s a transnational corporation with a paramilitary enforcement division.
Why They Ended Up in Into the Fire
When I was building the threat that drives Mason in Into the Fire, I needed an antagonist that felt genuinely dangerous at a systemic level — not just a villain with a gun, but an organization so deeply embedded in both criminal and quasi-political power that you couldn’t simply arrest your way out of the problem. The CJNG checked every box.
I also wanted the cartel in the book to feel real in the way that good fiction demands — grounded in something that exists, even if the specific plot is invented. The CJNG’s combination of military capability, intelligence tradecraft (they actively recruit former law enforcement and soldiers), and brutal strategic thinking made them the perfect shadow to hang over Mason’s mission.
El Mencho is gone now. But as the cartel’s response to his death proved — within hours, twenty states, 250 roadblocks — the CJNG isn’t going anywhere. The organization is bigger than any one man. That’s what makes them genuinely frightening, and that’s what makes them, for a thriller writer, genuinely compelling.
Want to see how Mason goes up against them? Into the Fire is available now.