Sheinbaum Leads Security Cabinet Briefing on Teotihuacán Investigation; Shooter Had Columbine-Inspired Profile

At her April 21 mañanera, President Sheinbaum convened a full security cabinet briefing on the previous day's mass shooting at the Teotihuacán archaeological zone. The State of Mexico Attorney General's Office disclosed that attacker Julio César Jasso Ramírez (27) had visited the Teotihuacán site multiple times in the days preceding the attack and had stayed in nearby hotels while planning the assault. Investigators found materials in his belongings related to violent mass shooting events that occurred in the United States in April 1999 — an apparent reference to the Columbine High School massacre — indicating a deliberate copycat motivation. Security officials confirmed the attack involved a single perpetrator: of the 13 people injured, seven sustained gunshot wounds and six suffered fall injuries while fleeing; six of the seven had already been discharged from hospital. Sheinbaum reiterated her solidarity with victims' families and said Mexico is in contact with the Canadian Embassy. She also instructed security services to prepare a comprehensive risk analysis for the 2026 FIFA World Cup venues following the shooting's high-profile impact on Mexico's international image. The incident prompted renewed calls from opposition politicians and tourism associations for reinforced security at heritage sites. Canada's Global Affairs department issued a travel advisory update for tourists visiting Mexican archaeological zones.