Authorities in Mexico are still piecing together how a typical morning at the ancient pyramid complex of Teotihuacán, one of the country's foremost tourist destinations, descended into terrifying gun violence on Monday. The video footage is disturbing. A gunman stands atop the imposing Pyramid of the Moon and opens fire on the tourists around him, who cower for cover among the pre-Hispanic stone structures.

After the ordeal, a 32-year-old Canadian woman had been killed and the gunman had died from a self-inflicted gun wound. Tourists from several nations, including Russia, Colombia, and Brazil, were treated for their injuries in local hospitals. The fact that visitors from overseas were targeted poses a headache for the government just weeks before Mexico co-hosts the men's football World Cup.

The shooting came less than two months after masked gunmen from the Jalisco New Generation Cartel unleashed a wave of violence, sowing fear across the country following the killing of their leader El Mencho by the security forces. However, this incident was very different. Mexican authorities say the Teotihuacán gunman acted alone and there was no apparent link to Mexico's widespread cartel violence.

He has been identified as 27-year-old Julio César Jasso Ramírez, a Mexican citizen who lived in Mexico City. Attorney-General of Mexico State José Luis Cervantes Martínez stated, The aggressor planned and carried out the attack on his own and there is absolutely no indication that he had any external help or that any other individuals were involved in this incident.

Among the gunman's belongings, officials found a handgun, a bag of cartridges, and a tactical knife. However, they also discovered literature, images, and manuscripts related to acts of violence similar to events in the U.S. in April 1999. Witnesses reported hearing the attacker mention Columbine, referring to the notorious school shooting.

This incident comes three weeks after another tragic shooting in Michoacán, signaling a possible trend towards mass shootings in Mexico that echo American societal issues. Valeria Villa, a family therapist, noted this as a troubling transition towards behavior resembling U.S. mass shootings, attributing it partly to society's desensitization to ongoing violence.

Despite efforts from President Claudia Sheinbaum to assure the safety of visitors during the upcoming World Cup, this unprecedented attack on a major tourist attraction will undoubtedly cause concern among potential attendees.