In June 2020, the think tank
Center for Strategic and International Studies (CSIS) assembled a database of 893 terrorism incidents in the United States beginning in 1994.An analysis of the database conducted by
The Guardian in July 2020 found no murder linked to antifa or anti-fascism since 1994. According to
The Guardian, the only death resulting from an anti-fascist attack recorded in the database was that of Willem van Spronsen, who was shot dead by police while allegedly
firebombing a
U.S. Immigration and Customs Enforcement (ICE) detention center in
Tacoma, Washington. In contrast, the study highlighted that 329 people were killed by American white supremacists or other right-wing extremists during the same period.
The CSIS database was updated in October 2020 to include the suspected
killing of Aaron Danielson by Michael Reinoehl.