Sept. 10, 2025: Evergreen High School – Two teens were shot at the school. The victims and a suspected shooter were in critical condition. This is a developing story and will be updated.
March 22, 2023: East High School, Denver – A student shot and wounded two administrators and fled the building. His body was found later in the day; he died from a self-inflicted gunshot wound.
Nov. 19, 2021: Hinkley High School, Aurora – Three teens were shot and wounded in the school’s parking lot.
May 7, 2019: STEM School Highlands Ranch – One student dead, two suspects in custody and eight people injured.
Dec. 13, 2013: Arapahoe High School, Centennial – A student entered the school carrying a shotgun looking for a particular teacher, who left the building. The shooter shot one student before lighting the library on fire and killing himself.
Feb. 23, 2010: Deer Creek Middle School, Littleton – In the parking lot of a middle school, a man shot a rifle wounding two eighth-grade students. He was tackled by faculty and arrested. The man was found to be legally insane and is in a state mental hospital.
Sept. 27, 2006: Platte Canyon High School, Bailey – An adult fatally shot 16-year-old Emily Keyes and then himself after taking hostages.
April 20, 1999: Columbine High School, Jefferson County – Two male high school students killed 12 students and one teacher and wounded 24 other people before committing suicide in the school library.
