Incident Summary:

10/11/2016: An assailant attempted to remotely detonate an explosive device planted outside of a police station in Nederland, Colorado, United States. There were no reported casualties, as the device failed to detonate. David Ansberry claimed responsibility for the incident and expressed anti-police sentiment, stating that the attack was intended to draw attention to police shootings, citing the deaths of students at Kent State University in 1970 and Michael Brown in 2014.



United States

North America

region/u.s. state:



Attack Information
Type of Attack (more) Bombing/Explosion
Successful Attack? (more) No
Target Information (more)
Target Type: Police
Name of Entity Nederland Police Department
Specific Description Station
Nationality of Target United States
Additional Information
Hostages No
Ransom No
Property Damage No
Weapon Information
Type Sub-type
Explosives/Bombs/Dynamite Remote Trigger
Weapon Details
A remote-controlled homemade explosive device containing hexamethylene triperoxide diamine (HMTD) and hexamine fuel tablets and placed in a duffel bag was used in the attack.
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) No
Perpetrator Group Information
Group Name Claimed Responsibility
Anti-Police extremists Yes (Confirmed: Unknown; Mode: Personal claim)
Perpetrator Statistics
Number of Perpetrators 1
Number of Captured Perpetrators 1
Casualty Information
Total Number of Casualties 0 Fatalities / 0 Injured
Total Number of Fatalities 0
Number of U.S. Fatalities 0
Number of Perpetrator Fatalities 0
Total Number of Injured 0
Number of U.S. Injured 0
Number of Perpetrators Injured 0
"Man gets 27 years for failed bomb outside police station,", January 25, 2019.
"Radical hippie dwarf sentenced to 27 years in prison for bomb outside Colorado police station," Long, January 26, 2019.