Mexican officials said that about 80% of the recovered weapons in crime scenes were purchased in the United States and smuggled across the border.

Documents reveal the fall of “El Mencho" was the culmination of an aggressive “total elimination" strategy pursued by the U.S. against the Jalisco New Generation Cartel (CJNG).

Nemesio “El Mencho” Oseguera Cervantes was a feared Mexican drug lord and the leader of a ruthless cartel accused of masterminding efforts to push fentanyl into the United States.

US-backed operation that killed El Mencho sparks a wave of violence across the country.

A clandestine romantic meeting wasn't as secret as fentanyl kingpin "El Mencho" believed, leading to a fierce gunfight and the end of a narco-era.

Nemesio Rubén Oseguera Cervantes, known as "El Mencho," was the leader of the notorious Jalisco New Generation Cartel prior to his death on Sunday.

Authorities deploy 10,000 soldiers nationwide to quell violence following the drug lord’s killing in an operation.

El Mencho's Jalisco New Generation Cartel has been one of the most significant suppliers of fentanyl, methamphetamine, and cocaine into the United States.

Mexican security forces kept up their battle with cartel gunmen following the killing of the country's most powerful drug lord, which sparked a surge in violence and left more than 70 people

The Mexican army killed the country’s most powerful cartel leader and one of the United States’ most wanted fugitives.

The killing of Nemesio Ruben Oseguera Cervantes, the leader of the Jalisco New Generation Cartel (Cartel Jalisco Nueva Generacion, or CJNG), has triggered a wave of violence across several Mexican states, including Jalisco. Cervantes, better known as “El Mencho”, was killed in an operation by Mexico’s army on Sunday.