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
Ransom 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 supremacists/nationalists 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.