Incident Summary:

10/01/2017: An assailant opened fire from the Mandalay Bay Hotel on the Route 91 Harvest Festival concert in Las Vegas, Nevada, United States. Fifty-eight people were killed and 851 people were injured in the attack. The assailant shot and killed himself before police reached him. Authorities identified the assailant as Stephen Paddock. A witness claimed that in the weeks before the attack she overheard Paddock espousing anger over the 1990s standoffs in Waco, Texas and Ruby Ridge, Idaho. A second witness reported that Paddock expressed concern over the United States government "confiscating guns" and that "somebody has to wake up the American public and get them to arm themselves." However, the Federal Bureau of Investigation Behavioral Analysis Unit ultimately determined that "there was no single or clear motivating factor" and that Paddock "was not seeking to further any religious, social, or political agenda."



United States

North America

region/u.s. state:


Las Vegas

Location Details:
The incident occurred along Las Vegas Boulevard.

Attack Information
Type of Attack (more) Armed Assault
Successful Attack? (more) Yes
Target Information (more)
Target Type: Airports and Aircraft
Name of Entity McCarran International Airport
Specific Description Fuel Tanks
Nationality of Target United States
Target Type: Business
Name of Entity Mandalay Bay Resort and Casino
Specific Description Security Guard: Jesus Campos
Nationality of Target United States
Target Type: Private Citizens & Property
Name of Entity Route 91 Harvest Festival
Specific Description Country Music Festival
Nationality of Target United States
Additional Information
Hostages No
Ransom No
Property Damage Yes
Extent of Property Damage Unknown
Value of Property Damage Unknown
Weapon Information
Type Sub-type
Firearms Automatic Weapon
Weapon Details
AR-15 semiautomatic rifles equipped with bump stocks were used in the attack.
Additional Information
Suicide Attack?No
Part of Multiple Incident?No
Criterion 1 (more) No
Criterion 2 (more) Yes
Criterion 3 (more) Yes
Doubt Terrorism Proper (more) Yes
Alternate Designation (more) Other Crime Type
Additional Information Amaq News Agency, the Islamic State of Iraq and the Levant (ISIL) media wing, claimed that Paddock, the assailant, was a "soldier of the caliphate;" however, authorities dismissed the claim. Casualty numbers conflict across sources. Following GTD protocol, the most recent reliable estimates are reported here. There is doubt that this incident meets terrorism-related criteria. Authorities could not verify witness statements alluding to a possible motive and the Federal Bureau of Investigation's Behavioral Analysis Unit determined that "Paddock was not seeking to further any religious, social, or political agenda" in the attack.
Perpetrator Group Information
Group Name Claimed Responsibility
Anti-Government extremists (suspected) No
Perpetrator Statistics
Number of Perpetrators 1
Number of Captured Perpetrators 0
Casualty Information
Total Number of Casualties 59 Fatalities / 851 Injured
Total Number of Fatalities 59
Number of U.S. Fatalities Unknown
Number of Perpetrator Fatalities 1
Total Number of Injured 851
Number of U.S. Injured Unknown
Number of Perpetrators Injured 0
"New documents suggest Las Vegas shooter was conspiracy theorist - what we know," The Guardian, May 19, 2018.
"Housekeeper describes chilling interaction with Las Vegas gunman before massacre," CBS News, May 17, 2018.
"Sheriff: Person of interest part of Strip shooting probe; Paddock had child porn," Las Vegas Sun, January 19, 2018.