Tragedy Strikes at Teotihuacán: Gunman Influenced by US Mass Shootings

Wed Apr 22 2026 12:50:22 GMT+0000 (Coordinated Universal Time)

A gunman opened fire at the Pyramid of the Moon in Mexico, leading to one fatality and numerous injuries. The shooter had ties to previous mass shootings in the US, raising concerns about security at tourist sites ahead of the World Cup.

Mexican officials have confirmed that Julio César Jasso Ramírez, a 27-year-old who opened fire at the Pyramid of the Moon, was influenced by previous violent incidents in the US. The tragic event resulted in one Canadian tourist's death and injuries to 13 others. In response, security measures at archaeological sites will be strengthened as the country prepares for the upcoming World Cup.

The gunman who opened fire atop Mexico's ancient Pyramid of the Moon appeared to have been influenced by other violent shootings and showed signs of psychological problems, the country's president said on Tuesday.

Julio César Jasso Ramírez, 27, a Mexican national, carried a handgun, dozens of cartridges, a knife, and literature referencing acts of violence, officials said on Tuesday.

Mexico's top prosecutor stated that Jasso Ramírez planned and executed the attack alone, subsequently fatally shooting himself after a standoff with police. A Canadian woman was killed, and 13 others were injured at the popular tourist site northwest of Mexico City.

President Claudia Sheinbaum noted that the gunman demonstrated psychological issues and was motivated by incidents occurring abroad. The shooter reportedly carried documents referencing the 1999 Columbine High School massacre and made threats during the attack.

Witnesses reported that Jasso Ramirez expressed a connection to the Columbine shooting, which occurred 27 years prior. This tragic incident underscores ongoing concerns regarding safety at tourist attractions. The site, known for its ancient pyramids, was temporarily closed but will reopen with enhanced security protocols.

In light of this tragic event, Sheinbaum has ordered improved security at archaeological sites nationwide, especially ahead of the World Cup scheduled to begin in June, promising safety for visitors.