Nemesio Rubén Oseguera Cervantes, known as “El Mencho” was the boss of one of the fastest-growing criminal networks in Mexico, notorious for trafficking fentanyl, methamphetamine and cocaine to the United States and staging brazen attacks against government officials who challenged it.
He was killed during a shoot-out in his home state of Jalisco as the Mexican military attempted to capture him. Cartel members responded with violence across the country, blocking roads and setting fire to vehicles.
President Claudia Sheinbaum urged calm and authorities announced late Sunday they had cleared most of the more than 250 cartel roadblocks across 20 states. The president was expected to address the situation at her daily news briefing Monday morning.
The White House confirmed that the U.S. provided intelligence support to the operation to capture the cartel leader and applauded Mexico's army for taking down a man who was one of the most wanted criminals in both countries.
Mexico hoped the death of the world's biggest fentanyl traffickers would ease Trump administration pressure to do more against the cartels, but many remained hunkered down and on edge as they waited to see the powerful cartel's reaction.
Many fear more violence
The U.S. Embassy said via X that its personnel in eight cities and the state of Michoacan would shelter in place and work remotely Monday and it warned U.S. citizens in many parts of Mexico to do the same.
Cars began circulating in Guadalajara before sunrise Monday with the start of the work week, a notable change from Sunday when Jalisco's state capital and Mexico's second-largest city was almost completely shut down as fearful residents stayed home.
Passengers arriving at the city's international airport Sunday night were told it was operating with limited personnel because of the burst of violence.
Jacinta Murcia, a 64-year-old nutrition products vendor, was among those nervously walking late Sunday night through the airport, where earlier in the day, travelers sprinted and ducked behind chairs, fearing violence. Most flights into the city were suspended on Sunday.
Murcia anxiously scrolled through news stories on social media showing the face of "El Mencho” and sent messages to her children, who were tracking her location as she tried to travel across the city to her house after dark.
“My plan today is to leave the airport to see if there are any taxis, but I’m scared of everything; blockades, a curfew, something could happen,” she said. “I'm all alone.”
Authorities in Jalisco, Michoacan and Guanajuato reported at least 14 other people killed Sunday, including seven National Guard troops.
Videos circulating on social media Sunday showed tourists in Puerto Vallarta walking on the beach with smoke rising in the distance.
A blow against a cartel could be a diplomatic coup
David Mora, Mexico analyst for International Crisis Group, said the capture and outburst of violence marks a point of inflection in Sheinbaum’s push to crack down on cartels and relieve U.S. pressures.
U.S. President Donald Trump has demanded Mexico do more to fight the smuggling of the often-deadly drug fentanyl, threatening to impose more tariffs or take unilateral military action if the country does not show results.
There were early signs that Mexico’s efforts were well received by the United States.
U.S. Ambassador Ron Johnson recognized the success of the Mexican armed forces and their sacrifice in a statement late Sunday. He added that “under the leadership of President Trump and President Sheinbaum, bilateral cooperation has reached unprecedented levels.”
But it may also pave the way for more violence as rival criminal groups take advantage of the blow dealt to the CJNG, Mora said.
“This might be a moment in which those other groups see that the cartel is weakened and want to seize the opportunity for them to expand control and to gain control over Cartel Jalisco in those states,” he said.
“Ever since President Sheinbaum has been in power, the army has been way more confrontational, combative against criminal groups in Mexico,” Mora said. “This is signaling to the U.S. that if we keep cooperating, sharing intelligence, Mexico can do it. We don’t need U.S. troops on Mexican soil."
