The gunman who opened fire on the Teotihuacán pyramids in Mexico, Julio César Jasso Ramírez, killed a Canadian woman and injured 13 others. Six of the injured have since been discharged, while seven remain hospitalized. Ramiziz was shot in the leg by a National Guardsman before using a.38-caliber revolver to self-inflicted himself. His backpack contained notes and photos allegedly related to past mass shootings in the US. The attacker had previously visited the pyramids multiple times and was identified as having a psychopathic profile.