April 21 (UPI) -- Mexican authorities have identified Julio César Jasso Ramírez as the man who opened fire Monday at the Teotihuacan pyramids, killing one woman and himself. Thirteen others were either shot or injured in the chaos.
The investigation into the motive and possible security failures continues after the attack about 30 miles northeast of Mexico City. The dead tourist was a 32-year-old Canadian, authorities said.
Witnesses at the site said Jasso Ramírez, a 27-year-old Mexican national, took hostages during the incident but released them, according to local media reports.
Accounts gathered by Mexican outlet Milenio said the attacker was wearing a black T-shirt with the phrase "Disconnect and self destruct" at the time of the shooting. He also was carrying an image generated with artificial intelligence depicting the attacker alongside Eric Harris and Dylan Klebold, perpetrators of the 1999 Columbine High School massacre in Colorado.
Abr 20, 2026 | 9:00 pm | Teotihuacan | De acuerdo con la INE encontrada en sus pertenencias, el tirador se llama Julio Cesar Jasso Ramírez, de 28 años, nacido en el entonces DF y con domicilio en Ticomán, Gustavo A. Madero. Su playera ha despertado recuerdos de Columbine en 1999. pic.twitter.com/UX8GdICoUz— EdoMex Informativo (@EdoMexInf) April 21, 2026
