No cartels involved – but Mexico’s pyramid attack prompts new concerns

Mexican authorities are working to understand how a peaceful morning at Teotihuacán, an iconic archaeological site, turned into a violent episode on Monday. The footage captures a harrowing scene: a shooter atop the Pyramid of the Moon fires at tourists, who scatter for safety behind pre-Hispanic stone structures. The incident left one Canadian woman dead, while the attacker died by suicide. Victims from Russia, Colombia, and Brazil were hospitalized, raising questions about the safety of international visitors as the country prepares to host the men’s football World Cup.

Just weeks before the global event, the attack follows a surge of cartel-related violence. Masked gunmen from the Jalisco New Generation Cartel had previously unleashed terror after their leader, “El Mencho,” was killed by security forces. Yet this incident appears distinct. Officials claim the Teotihuacán shooter acted independently, with no clear ties to organized crime. Identified as Julio César Jasso Ramírez, a 27-year-old Mexican resident of Mexico City, he was described as a solo perpetrator.

“The aggressor planned and executed the attack alone. There is no evidence of external assistance or other participants,” stated José Luis Cervantes Martínez, the attorney-general of Mexico State.

Among the attacker’s items were a handgun, ammunition, and a tactical knife. Additionally, authorities discovered materials referencing past violent events. These included references to the 1999 Columbine school shooting in the U.S., where two teens killed 13 people. A witness reported hearing the assailant mention Columbine, linking the attack to that infamous event.

A growing trend of lone violence

While Mexico has long been associated with cartel conflicts, this incident signals a shift. It fits a pattern of mass killings by individuals unconnected to established criminal networks. Valeria Villa, a mental health expert, called it “a turning point in Mexican society, a troubling moment reflecting the imitation of American mass shootings.”

Such events are not isolated. Just three weeks prior, a teenager in Michoacán used an AR-15 rifle to kill two teachers. These acts highlight a new dimension of violence, distinct from cartel rivalries. Villa argued that ongoing cartel activity has desensitized people to gun violence, particularly among youth.

Despite limited access to firearms compared to the U.S., weapons are still easily available via the black market. Many originate from American smuggling. President Claudia Sheinbaum praised her security strategy, citing a 44% drop in daily homicides by February 2026 from September 2024. She attributed the decline to policies under her predecessor, Andrés Manuel López Obrador, and claimed the trend continues under her leadership.

However, critics argue that statistics alone don’t capture the full picture. With tens of thousands of missing persons, the disappearance of young Mexicans remains a significant concern. The Teotihuacán attack underscores the growing fear of isolated acts of violence, echoing both U.S. tragedies and Mexico’s own turbulent history.