After El Mencho, Mexico’s cartels face a dangerous leadership vacuum

After El Mencho, Mexico’s cartels face a dangerous leadership vacuum

• El Mencho's death leaves CJNG without a clear leader.
• Cartel fragmentation may lead to more local, chaotic violence.
• CJNG rivals may challenge control of key territories.

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The killing of Nemesio Oseguera Cervantes, known as El Mencho, has not weakened

Mexico’s criminal networks overnight. What it has done is take away the one man

who sat at the centre of one of the country’s most powerful cartels.

For years, the Jalisco New Generation Cartel functioned less like a loose gang network

and more like a tightly controlled organisation. El Mencho approved alliances, settled

disputes and decided when violence would escalate. His authority mattered. With him

gone, that control is missing, CNN reported.

No obvious successor

There is no clear handover plan. El Mencho’s son is in prison in the United States. His

wife has been arrested in Mexico. Other close relatives are also behind bars. That

rules out a smooth family succession, which in cartel history often helps avoid

immediate bloodshed.

Several senior commanders now control pieces of CJNG territory, but none has the

standing to command the entire organisation. Analysts say this is when cartels

usually fracture. Local leaders test each other. Old grudges surface. Violence becomes

more local, more chaotic and harder to predict.

Early signs of fragmentation

The reaction after El Mencho’s death points in that direction. Roadblocks, arson

attacks and assaults on commercial property were not carefully targeted operations.

They looked more like shows of force. Messages aimed as much at rivals and internal

factions as at the state.

This kind of violence often serves a purpose inside criminal groups. It signals

strength. It tells foot soldiers who is still relevant. In the absence of a single leader,

those signals multiply.

The Sinaloa rivalry matters

CJNG’s main rival, the Sinaloa cartel, is itself weakened by arrests and infighting

after the removal of figures like Joaquín Guzmán and Ismael Zambada. El Mencho

had exploited that disorder to expand aggressively.

Now, rivals will test whether CJNG can still hold territory without him. Border cities,

trafficking routes and ports are likely pressure points.

A riskier phase for the state

For the Mexican government, this is not a victory lap. Leadership decapitation

removes command, not capacity. Thousands of armed members remain. Money

continues to flow. In fragmented phases, cartels often lash out more, not less.

There is also concern that factions could lean into intimidation tactics such as mass

roadblocks and attacks on infrastructure, not because they are strategically useful,

but because they are visible and easy to execute.

Beyond Mexico

CJNG’s reach extends into Central and South America. Any internal struggle forces

partners in places like Ecuador and Colombia to rethink who they answer to. That can

trigger new fights along cocaine supply routes and ports, far from where El Mencho

was killed.

El Mencho’s death closes one chapter. It opens a messier one. What follows is unlikely

to be a clean collapse. It is more likely to be a period of uncertainty, fragmentation

and violence while the cartel decides who, if anyone, is in charge.