The shooter at Evergreen High School last week fired 20 rounds within 9 minutes. That's according to a new report from the Jefferson County Sheriff's Office about the shooting in the Colorado foothills on Wednesday.

A police officer responds to a shooting at Evergreen High School on September 10, 2025 in Evergreen, Colorado. Michael Ciaglo / Getty Images

The calls to 911 started coming in at 12:24 p.m. about the shooting. Investigators say several rounds were fired inside the school and one student was injured during that time, according to the report. A spokesperson for the sheriff's office previously said that the shooter used a handgun.

The teenage shooter then left the building, crossed the school's football field and then shot a second student at the intersection of Olive Roa

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