Mexico officials say Teotihuacán gunman carried material related to US mass shooting

April 22, 2026

A 27-year-old Mexican man carried out a deadly shooting attack at Mexico's Pyramid of the Moon at the Teotihuacán archaeological site, killing a Canadian tourist and injuring thirteen others before taking his own life. Mexican authorities determined the gunman, Julio César Jasso Ramírez, had psychological issues and was influenced by the 1999 Columbine High School massacre, which occurred exactly 27 years before his attack. The shooter had planned the assault in advance, making multiple prior visits to the site before opening fire from atop the pyramid and engaging in a standoff with police.

Who is affected

Julio César Jasso Ramírez (the 27-year-old gunman who died)
A 32-year-old Canadian woman (killed)
Thirteen injured individuals ranging in age from 6 to 61, including seven shot (two minors from Colombia and Brazil)
Tourists visiting the Teotihuacán site
A National Guard member and municipal police officer who responded
Future visitors to archaeological and tourist sites across Mexico

What action is being taken

Thirteen people are being treated in hospitals for injuries
Security is being reinforced at the Teotihuacán site for its Wednesday reopening
Metal detectors are being installed at entrances of Teotihuacán and other archaeological/tourist sites nationwide
Security is being strengthened at archaeological and tourist sites across Mexico

Why it matters

This incident highlights vulnerability at Mexico's major tourist destinations and archaeological treasures, which attracted 1.8 million visitors to Teotihuacán alone last year and 16 million foreign visitors to Mexico in just January and February. The attack raises concerns about public safety at unsecured heritage sites and comes at a critical time as Mexico prepares to host World Cup matches starting in June, making security assurances vital for the country's tourism industry and international reputation.

What's next

The Teotihuacán site will reopen on Wednesday with reinforced security
Metal detectors will be installed at Teotihuacán and other sites
Security will be enhanced for the World Cup football matches beginning June 11 in Mexico City
President Sheinbaum is working with FIFA organizers on logistics for the tournament

Read full article from source: BBC