Incident Summary:

06/10/2020: An assailant opened fire on the police station in Paso Robles, California, United States. One police officer was injured while responding to the attack. No group claimed responsibility for the incident; however, sources identified the assailant as Mason James Lira, who was later killed in a police operation on June 11, 2020.



United States

North America

region/u.s. state:


Paso Robles

Attack Information
Type of Attack (more) Armed Assault
Successful Attack? (more) Yes
Target Information (more)
Target Type: Police
Name of Entity San Luis Obispo County Sheriff's Department
Specific Description Station
Nationality of Target United States
Additional Information
Hostages No
Ransom No
Property Damage Unknown
Extent of Property Damage Unknown
Value of Property Damage Unknown
Weapon Information
Type Sub-type
Firearms Handgun
Additional Information
Suicide Attack?No
Part of Multiple Incident?No
Criterion 1 (more) Yes
Criterion 2 (more) Yes
Criterion 3 (more) Yes
Doubt Terrorism Proper (more) Yes
Alternate Designation (more) Lack of Intentionality
Additional Information There is doubt that this incident meets terrorism-related criteria. Sources noted that the assailant had a long history of mental illness and institutionalization, and that this incident may have been a suicide attempt with a goal of taking out as many police as possible.
Perpetrator Group Information
Group Name Claimed Responsibility
Anti-Police extremists No
Perpetrator Statistics
Number of Perpetrators 1
Number of Captured Perpetrators 0
Casualty Information
Total Number of Casualties 0 Fatalities / 1 Injured
Total Number of Fatalities 0
Number of U.S. Fatalities 0
Number of Perpetrator Fatalities 0
Total Number of Injured 1
Number of U.S. Injured 1
Number of Perpetrators Injured 0
"Authorities: Suspect in ambush on California deputy is dead," Associated Press Newswires, June 12, 2020.
"California deputy shot in 'ambush' attack at police station," Associated Press Newswires, June 11, 2020.