Who was 'El Mencho' Nemesio Oseguera? All about Ex-police officer turned Mexico drug cartel leader killed by U.S. military-led task ​force

Mexican authorities killed drug lord Nemesio Oseguera, commonly known as 'El Mencho,' during an operation designed to capture him in the western state of Jalisco. The operation set off a wave of violence, with torched cars and gunmen blocking highways in more than half a dozen states. A new U.S.-military-led task force specializing in intelligence collection on drug cartels played a role in the Mexican military raid, a U.S. defense official told Reuters. The Joint Interagency Task Force-Counter Cartel, which involves multiple U.S. government agencies, was formally launched last month with the goal of mapping out networks of drug cartel members on both sides of the U.S.-Mexico border, U.S. officials said. The former official added El Mencho was very high, if not at the top, of a list of U.S. targets in Mexico.

Who was El Mencho?

An ex-police officer, 60-year-old Oseguera was the shadowy leader of the powerful Jalisco New Generation Cartel (CJNG), an international criminal enterprise widely viewed as one of Mexico's most powerful. He managed to evade arrest for years despite a $15 million bounty ⁠from the U.S. for information leading to his arrest or capture.



The U.S. State Department had offered a reward of up to $15 million for information leading to the arrest of El Mencho. The Jalisco New Generation Cartel, known as CJNG, is one of the most powerful and fastest growing criminal organizations in Mexico and was born in 2009.

In February, the Trump administration designated the cartel as a foreign terrorist organization.

The Jalisco cartel has been one of the most aggressive cartels in its attacks on the military — including on helicopters — and is a pioneer in launching explosives from drones and installing mines. In 2020, it carried out a spectacular assassination attempt with grenades and high-powered rifles in the heart of Mexico City against the then head of the capital’s police force and now federal security secretary.

The DEA considers the cartel to be as powerful as the Sinaloa cartel, one of Mexico's most infamous criminal groups, with a presence in all 50 U.S. states. It is one of the main suppliers of cocaine to the U.S. market and, like the Sinaloa cartel, earns billions from the production of fentanyl and methamphetamines. Sinaloa, however, has been weakened by infighting after the loss of its leaders Ismael “El Mayo” Zambada and Joaquín “El Chapo” Guzmán, both in U.S. custody.

Oseguera Cervantes was originally from Aguililla in the neighboring state of Michoacan. He had been significantly involved in drug trafficking activities since the 1990s. When he was younger, he migrated to the U.S. where he was convicted of conspiracy to distribute heroin in the U.S. District Court for the Northern District of California in 1994 and served nearly three years in prison.

Following his release from custody, Oseguera Cervantes returned to Mexico and reengaged in drug trafficking activity with drug lord Ignacio Coronel Villarreal, alias “Nacho Coronel.” After Villarreal's death, Oseguera Cervantes and Erik Valencia Salazar, alias “El 85,” created the Jalisco New Generation Cartel around 2007.

Initially, they worked for the Sinaloa Cartel, but eventually split and for years the two cartels have battled for territory across Mexico.

Since 2017, Oseguera Cervantes has been indicted several times in the United States District Court for the District of Columbia.

The most recent superseding indictment, filed on April 5, 2022, charges Oseguera Cervantes with conspiracy and distribution of controlled substances (methamphetamine, cocaine, and fentanyl) for the purpose of illegal importation into the United States and use of firearms during and in connection with drug trafficking offenses. Oseguera Cervantes is also charged under the Drug Kingpin Enforcement Act for directing a continuing criminal enterprise.

Last year, people searching for missing relatives founds piles of shoes and other clothing, as well as bone fragments at what authorities later said was a Jalisco cartel recruitment and training site.