Incident Summary:

10/01/2015: An assailant, identified as Christopher Harper-Mercer, entered a classroom at Umpqua Community College and held an unknown number of students and staff hostage in Roseburg, Oregon, United States. Armed with six firearms, the assailant shot and killed nine people and injured at least seven others. He exchanged fire with responding police officers before shooting himself and committing suicide. Statements Harper-Mercer made in his manifesto and posted online reflect a fixation on mass shootings, as well as a misogynist and white supremacist narrative seen in message forums where participants self-identify as "involuntarily celibate" (incel).



United States

North America

region/u.s. state:



Attack Information
Type of Attack (more) Hostage Taking (Barricade Incident)
Successful Attack? (more) Yes
Target Information (more)
Target Type: Educational Institution
Name of Entity Umpqua Community College
Specific Description School
Nationality of Target United States
Additional Information
Hostages Yes
Number of Hostages Unknown
US Hostages Unknown
Outcome Combination
Ransom No
Property Damage Yes
Extent of Property Damage Minor (likely < $1 million)
Value of Property Damage Unknown
Weapon Information
Type Sub-type
Firearms Automatic Weapon
Firearms Handgun
Weapon Details
A 5.56-caliber Del-Ton DTI15 semiautomatic rifle, a .40-caliber Smith & Wesson Model 99 pistol, a .38-caliber Smith & Wesson Model M642-2 pistol, a .380-caliber HiPoint pistol, a .40-caliber Taurus Model T24 pistol, and a 9-mm Glock Model 19 pistol were 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 assistant professor Lawrence Levine and students Lucero Alcaraz, Quinn Glenn Cooper, Jason Dale Johnson, Treven Taylor Anspach, Kim Saltmarsh Dietz, Rebecka Ann Carnes, Lucas Eibel, Sarena Dawn Moor, and Chris Mintz. Casualty numbers conflict across sources. Following GTD protocol, the lowest reliable estimates are reported here.
Perpetrator Group Information
Group Name Claimed Responsibility
Incel extremists Yes (Confirmed: Unknown; Mode: Personal claim)
Perpetrator Statistics
Number of Perpetrators 1
Number of Captured Perpetrators 0
Casualty Information
Total Number of Casualties 10 Fatalities / 7 Injured
Total Number of Fatalities 10
Number of U.S. Fatalities 10
Number of Perpetrator Fatalities 1
Total Number of Injured 7
Number of U.S. Injured 7
Number of Perpetrators Injured 0
"Merciless gunman shot woman in a wheelchair, Oregon survivor says,", October 5, 2015.
"'Here I am, 26, with no friends, no job, no girlfriend': Shooter's manifesto offers clues to 2015 Oregon college rampage," Los Angeles Times, September 23, 2017.
"Oregon gunman killed himself in front of students after cops shot him," CBS News, October 7, 2015.