Incident Summary:

11/01/2018: A letter bomb addressed to Tom Steyer, a Democratic donor, was discovered and defused at a mail sorting facility on Rollins Road in Burlingame, California, United States. This was one of 16 coordinated mail bomb attacks and one of two letter bombs addressed to Steyer between October 22, 2018 and November 1, 2018 that targeted critics of President Donald Trump. Cesar Altieri Sayoc was arrested in connection with the incidents. Sources noted that Sayoc's vehicle was covered in right-wing paraphernalia.

GTD ID:
201811010001

When:
2018-11-01

Country:
United States

Region:
North America

Province/administrative
region/u.s. state:

California

City:
Burlingame

Location Details:
The incident occurred along Rollins road.

Attack Information
Type of Attack (more) Bombing/Explosion
Successful Attack? (more) No
Target Information (more)
Target Type: Private Citizens & Property
Name of Entity Not Applicable
Specific Description Political Activist: Tom Steyer
Nationality of Target United States
Additional Information
Hostages No
Ransom No
Property Damage No
Weapon Information
Type Sub-type
Explosives/Bombs/Dynamite Letter Bomb
Weapon Details
A six-inch PVC pipe filled with pyrotechnic powder, fertilizer, pool chemicals, and broken glass as shrapnel was used in the attack. The device was connected to a small battery and an inoperative digital clock and mailed in a manila envelope.
Additional Information
Suicide Attack?No
Part of Multiple Incident?Yes
Criterion 1 (more) Yes
Criterion 2 (more) Yes
Criterion 3 (more) Yes
Doubt Terrorism Proper (more) No
Perpetrator Group Information
Group Name Claimed Responsibility
Pro-Trump extremists No
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
Sources
"Another suspicious package sent to political activist Tom Steyer intercepted," USA Today, November 2, 2018.
"Second suspicious package to Tom Steyer found in Burlingame," The San Francisco Chronicle, November 3, 2018.