National Institute of Anthropology and History

Six Americans and others were injured in a shooting at Mexico's Teotihuacán pyramids by a gunman who later died by suicide. The attacker, Julio César Jasso Ramírez, was linked to Columbine High School shooting references and carried weapons. Mexican officials closed the site and emphasized the need for stronger security.

A 27-year-old Mexican man, Julio Cesar Jasso, fatally shot a Canadian tourist and injured over a dozen others at the Pyramid of the Moon in Teotihuacan, Mexico, before committing suicide. The incident, which occurred during a busy tourist hour, led to the temporary closure of the archaeological site and international condemnation.