The Teotihuacán attacker was a young admirer of Hitler who tried to re-edit the Columbine massacre in 1999

The attacker, who died after the attack – it is still not clear whether it was a suicide or gunshots from the authorities – was identified as Julio César Jasso Ramírez27 years old and resident in the Mexican capital, Mexico Cityafter the discovery of a voter ID card at the crime scene.

The shooting occurred Monday morning at the Pyramid of the Moon, within Teotihuacán, one of the favorite tourist destinations. It is recognized as a UNESCO World Heritage Site. It is located about 50 kilometers from Mexico City, site of the opening match of the World Cup on June 11.

The person responsible for the shooting left at the crime scene a photo frame with an image generated by artificial intelligence in which he appeared with the Columbine killers, Eric Harris y Dylan Kleboldwho committed suicide in 1999 after killing 13 people and wounding 24.

That massacre, considered the first mass school shooting in the United States, occurred on April 20, the same day as this Monday’s attack in the tourist area of ​​the Teotihuacán pyramids, where at least one Canadian tourist died.

At the time he opened fire, the man was wearing a face mask and a gray plaid shirt, and in the photograph generated by artificial intelligence he was wearing a T-shirt with the legend “Disconnect and Self-Destroy“(“Disconnect and self-destruct.”)

This phrase is linked to the True Crime Community (TCC), una global digital subculture that glorifies mass murderers.

Although it is a decentralized movement, links between the TCC and other far-right communities on the Internet have been identified, and its origin dates back to Internet forums that emerged precisely after the Columbine massacre.

Other linked attacks

This firearm incident is not the first linked to the TCC community, but is a type of terrorist aggression that has been repeated in other places of the world recently.

The origin of CBT dates back to internet forums that emerged precisely after the Columbine massacre. Although it is a decentralized movement, links have been identified with organizations linked to the extreme right.

In Argentina, a 15-year-old minor also inspired by this community killed a child and injured eight others on March 30 in a school in the city of San Cristóbal, belonging to the province of Santa Fe.

This attacker used various aliases on social networks, where he shared content that glorified previous school massacres.

On the other hand, in the US, at least 15 attacks linked to this violent subculture were recorded between January 2024 and September 2025, according to the Institute for Strategic Dialogue (ISD).

In Italy recently, Police prevented a massacrewhen arresting a 17-year-old young man in the province of Perugiawhich intended to carry out a massacre in a school, to emulate the Columbine massacre.

According to the investigation of the Mexican chain Newscastthe Teotihuacán attacker He carried a watch with a stopwatch in his right hand. which marked zero at the time his body was found, which points to a possible prior programming of the moment of the shooting.

Fight against the National Guard

The same media has indicated that the shooter exchanged shots with the National Guard, so it is not clear if he died from this or from a self-inflicted wound.

Meanwhile, the Mexican newspaper The Universal It has been announced that the attacker’s body was found along with a revolver, a tactical knife and a backpack with books and photographs.

As stated by a witness in statements collected by the Mexican television network, Telediario TV, she mentioned that she believes that the attacker carried out at least 20 detonations with a firearm.

In parallel, other testimonies of this attack claim that he had an argument with some of the tourists, moments before shooting them and taking the life of one of them.

In addition to killing a Canadian tourist, Jasso Ramirez injured thirteen people, also foreigners, of whom eight remain hospitalized and five have been discharged, as reported by the Ministry of the Interior (Segob) of Mexico.

Minutes after the shooting occurred, the president of Mexico, Claudia Sheinbaumhe reported on his social network account X that his Government was in contact with the embassy of Canadawhile expressing his solidarity with the affected people and their families.

“What happened in Teotihuacán hurts us deeply,” he said in a message posted on social networks.