Incident Summary:

09/16/2016: An assailant shot and injured police sergeant Sylvia Young in Philadelphia, Pennsylvania, United States. When officers responded, the assailant proceeded to shoot at additional targets, including people sitting in a tavern and in a vehicle, and another police officer in an alley. The assailant and one civilian were killed and five people, including two police officers, were injured in the attack. Nicholas Glenn claimed responsibility for the incident and stated in a note left at the scene that he hated police officers.



United States

North America

region/u.s. state:



Attack Information
Type of Attack (more) Armed Assault
Successful Attack? (more) Yes
Target Information (more)
Target Type: Police
Name of Entity Philadelphia City Police
Specific Description Officer: Sergeant Sylvia Young
Nationality of Target United States
Target Type: Police
Name of Entity University of Pennsylvania Police Department (UPPD)
Specific Description Officer: Edward Miller
Nationality of Target United States
Target Type: Private Citizens & Property
Name of Entity Not Applicable
Specific Description Civilians
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 Ruger semiautomatic handgun was 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 There is doubt that this incident meets terrorism-related criteria. Sources suspected that the attack may have been motivated by a personal grudge against a probation officer.
Perpetrator Group Information
Group Name Claimed Responsibility
Anti-Police extremists Yes (Confirmed: Unknown; Mode: Note left at scene)
Perpetrator Statistics
Number of Perpetrators 1
Number of Captured Perpetrators 0
Casualty Information
Total Number of Casualties 2 Fatalities / 5 Injured
Total Number of Fatalities 2
Number of U.S. Fatalities 2
Number of Perpetrator Fatalities 1
Total Number of Injured 5
Number of U.S. Injured 5
Number of Perpetrators Injured 0
"Hate drove gunman to shoot Philadelphia police - officials," Straits Times, September 17, 2016.
"2 Officers, 4 Others Shot During Shooting Spree in Philly,", September 17, 2016.
"Philadelphia gunman, bystander killed in ambush that left 2 officers injured," Dallas Morning News, September 17, 2016.