Incident Summary:

08/08/1975: Unknown perpetrator(s) bombed the United States Courthouse in Denver, Colorado, United States. There were no casualties but a door and windows of the building were shattered. Windows in adjacent buildings were damaged as well.

GTD ID:
197508080005

When:
1975-08-08

Country:
United States

Region:
North America

Province/administrative
region/u.s. state:

Colorado

City:
Denver

Location Details:
Side entrance of building

Attack Information
Type of Attack (more) Bombing/Explosion
Successful Attack? (more) Yes
Target Information (more)
Target Type: Government (General)
Name of Entity United States Courthouse
Specific Description Denver Westside Courthouse
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
Explosives Dynamite/TNT
Weapon Details
thirty sticks of dynamite
Additional Information
Suicide Attack?No
Part of Multiple Incident?No
Criterion 1 (more) Yes
Criterion 2 (more) Yes
Criterion 3 (more) Yes
Additional Information Several hours before the incident, the courthouse received a bomb threat. The incident took place days after courthouses in Washington were bombed by the George Jackson Brigade (197508050003 and 197508060002).
Perpetrator Group Information
Group Name Claimed Responsibility
Unknown No
Perpetrator Statistics
Number of Perpetrators Unknown
Number of Captured Perpetrators Unknown
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
Sources
"Explosion Damages Denver Courthouse After Bomb Threat," New York Times, August 9, 1975.
"Courthouse is Bombed in Denver," Bangor Daily News, August 8, 1975.
Marcia McKnight Trick, "Chronology of Incidents of Terroristic, Quasi-Terroristic, and Political Violence in the United States: January 1965 to March 1976," National Advisory Committee on Criminal Justice Standards and Goals: Report of the Task Force on Disorders and Terrorism, 1976.