Mexico officials say Teotihuacán gunman carried material related to US mass shooting

The gunman visited the archaeological site repeatedly and appeared to act alone.

A gunman opened fire on tourists at Mexico's Teotihuacan pyramids, killing a Canadian woman and injuring at least 13 others. Authorities found materials referencing the 1999 Columbine massacre among his belongings.

An armed man opened fire atop the Pyramid of the Moon in Teotihuacan, Mexico, killing one Canadian and injuring at least 13 others. The shooter later died from a self-inflicted gunshot wound.

A gunman opened fire from atop the Pyramid of the Moon in Teotihuacan, Mexico, killing a Canadian woman and injuring 13 others. Authorities linked the attack to the 'Columbine effect'.

The gunman who opened fire at Mexico's Teotihuacan pyramids was influenced by U.S. school shootings, including the Columbine massacre, and had psychological issues, officials said.

Officials stated that the gunman who opened fire at Mexico's Teotihuacan pyramids was influenced by violent acts in the U.S., including the Columbine massacre.

A 27-year-old gunman opened fire on tourists at Mexico's Teotihuacan pyramids, killing a Canadian woman and injuring at least 13 others. Authorities found materials referencing the 1999 Columbine massacre among his belongings.

A 27-year-old suspect who opened fire at the Teotihuacan archaeological site possessed material related to the Columbine school shooting in the United States, Mexican authorities said.