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A gunman who fatally shot a Canadian tourist and wounded more than a dozen others atop a historic pyramid in Mexico on Monday has been identified, according to officials.
Authorities identified the gunman as 27-year-old Julio Cesar Jasso, a Mexican national, according to a state official who spoke anonymously because they were not authorized to discuss the case publicly.
Jasso later died by suicide after turning the gun on himself, and security officials found a gun, a knife and ammunition. Authorities said he acted alone, with the State of Mexico government confirming he was the sole assailant on Monday night.
Officials said seven of the victims were struck by gunfire, while others were hurt in the chaos as people scrambled to get down from the pyramids, with some falling during the panic.
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The Pyramid of the Moon and the Pyramid of the Sun are seen along with smaller structures lining the Avenue of the Dead in Teotihuacan, Mexico, on March 19, 2020. A gunman killed a Canadian tourist and injured several other before taking his own life at the popular site, authorities said Monday. (Rebecca Blackwell/AP)
Those hospitalized included tourists from several countries, among them the United States, Colombia, Russia, Brazil and Canada, authorities said. The victims ranged in age from 6 to 61.
Footage circulating in local media appears to show the suspect positioned atop the structure as visitors rushed for safety below, with gunfire echoing across the site.
Police and forensic workers stand on a pyramid after authorities said a gunman opened fire in Teotihuacan, Mexico, Monday, April 20, 2026. (AP Photo/Eduardo Verdugo)
The Teotihuacan complex, located just outside Mexico City, is one of the country’s most visited archaeological landmarks, drawing millions of international visitors each year to its towering pre-Hispanic structures.
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The shooting took place shortly after 11:30 a.m. when dozens of tourists were at the top of the Pyramid of the Moon.
Security measures at the site have changed in recent years, with routine entry screenings no longer consistently in place, according to a local guide.
Mexican President Claudia Sheinbaum wrote on social media that the shooting would be investigated and that she was in touch with the Canadian Embassy.
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“What happened today in Teotihuacán deeply pains us. I express my most sincere solidarity with the affected individuals and their families,” she wrote.
Anita Anand, Canada’s foreign affairs minister, said on X that as a “result of a horrific act of gun violence, a Canadian was killed and another wounded in Teotihuacán” and that her “thoughts are with their family and loved ones.”
People visit the Pyramid of the Sun in the pre-Hispanic city of Teotihuacan near Mexico City, Mexico, on March 21, 2024, following the spring equinox. (Henry Romero/Reuters)
Later in the evening, U.S. Ambassador to Mexico Ronald Johnson also expressed “deep concern” and sadness over the deaths and numerous injuries, and said in a post on X that the U.S. is “ready to provide support as needed while Mexican authorities continue their investigation.”
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The National Institute of Anthropology and History said in a statement that the Teotihuacán archaeological site will remain closed until further notice.
The Associated Press contributed to this report.