Incident Summary:

"12/07/2017: An assailant, identified as William Atchison, opened fire on students at Aztec High School in Aztec, New Mexico, United States. The assailant shot and killed two students and fired multiple shots at a locked classroom before shooting and killing himself. Statements Atchinson made in his suicide note and posted online reflect a fixation on mass shootings, as well as a misogynist and white supremacist narrative referenced in message forums where participants self-identify as "involuntarily celibate" (incel)."



United States

North America

region/u.s. state:

New Mexico


Attack Information
Type of Attack (more) Armed Assault
Successful Attack? (more) Yes
Target Information (more)
Target Type: Educational Institution
Name of Entity Aztec High School
Specific Description School
Nationality of Target United States
Additional Information
Hostages No
Property Damage Yes
Extent of Property Damage Minor (likely < $1 million)
Value of Property Damage Unknown
Weapon Information
Type Sub-type
Firearms Handgun
Weapon Details
A 9-mm Glock handgun was used in the attack.
Additional Information
Suicide Attack?Yes
Part of Multiple Incident?No
Criterion 1 (more) Yes
Criterion 2 (more) Yes
Criterion 3 (more) Yes
Doubt Terrorism Proper (more) No
Additional Information The victims included students Casey Jordan Marquez and Francisco Fernandez.
Perpetrator Group Information
Group Name Claimed Responsibility
White extremists Yes (Confirmed: Unknown; Mode: Posted to website, blog, etc.)
Perpetrator Statistics
Number of Perpetrators 1
Number of Captured Perpetrators 0
Casualty Information
Total Number of Casualties 3 Fatalities / 0 Injured
Total Number of Fatalities 3
Number of U.S. Fatalities 3
Number of Perpetrator Fatalities 1
Total Number of Injured 0
Number of U.S. Injured 0
Number of Perpetrators Injured 0
"Racial motive disputed in New Mexico school shooting," The Associated Press, February 7, 2018."
"How Elliot Rodger went from misfit mass murderer to 'saint' for group of misogynists -- and suspected Toronto killer," Los Angeles Times, April 26, 2018."
"White man behind school shooting was obsessed with Trump and Hitler," Newsweek, December 15, 2017."