In a shocking incident, a gunman was caught on video atop an ancient pyramid in Mexico, where he held tourists hostage and opened fire. The chaotic scene unfolded on the historic Teotihuacan ruins, with the gunman, later identified as 27-year-old Julio Cesar Jasso Ramirez, pacing midway up the iconic site on Monday.

As the video reveals, Jasso Ramirez loaded his firearm with unnerving calmness while bewildered onlookers watched from the ground below. The hostages, visibly frightened, lay at his feet as he issued commands, and moments later, he aimed his weapon at them and discharged several rounds.

Tragically, the attack resulted in the death of a Canadian woman and left 13 others wounded, including several Americans. This violent act took place on the Pyramid of the Moon, a nearly 2,000-year-old monument near Mexico City, historically known for ritual sacrifices.

Local reports indicate that a gunfire exchange with federal police ensued, during which Jasso Ramirez appeared to have been hit. In a grim conclusion to the standoff, he reportedly turned the gun on himself.

A Canadian woman was shot dead and 13 others were injured, including several Americans, when Jasso scaled the Pyramid of the Moon — a nearly 2,000-year-old structure just outside Mexico City that was once used for ritual human sacrifice — just after 11:30 a.m.

The shooter eventually appeared to have been struck in an exchange of gunfire with federal police before he turned the gun on himself, according to local reports.

At the scene, security officers recovered a gun, knife and ammunition — as well as a bizarre AI-generated image of the gunman posing with the Columbine High School shooters. Monday was the 27th anniversary of the massacre.

Seven of the 13 injured were shot while others suffered various injuries.

Six Americans, three Colombians, one Russian, two Brazilians and one Canadian were taken to the hospital.

The youngest victim was 6, and the oldest was 61, authorities said.