William Parkin

Lead Investigator on START Research Projects

Patterns of U.S. Extremist Crime
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Selected Publications

An Intervention Analysis of Fatal Far-right Extremist Violence within a Vector-autoregressive Framework  (Journal Article)
Patterns of Fatal Extreme-Right Crime in the United States  (Journal Article)
Far-Right Fatal Ideological Violence against Religious Institutions and Individuals in the United States: 1990-2018  (Project Fact Sheet)
A Situated Comparison of Suicide and Non-Suicide Terrorist Plots and Homicides in the United States, 1990-2014  (Journal Article)
Extremist Violence from the Fatherland to the Homeland: A Comparison of Far-right Homicide in Germany and the United States  (Journal Article)
Comparing Extremist Perpetrators of Suicide and Non-suicide Attacks in the U.S.  (Journal Article)
Islamist and Far-Right Homicides in the United States: Infographic  (Research Brief)
Threats of violent Islamist and far-right extremism: What does the research say?  (Discussion Point)
Criminal Justice & Military Deaths at the Hands of Extremists  (Background Report)
Terrorism in the News: The Efficiency and Impact of Sampling Methods on Data Collection and Content Analysis  (Journal Article)
Twenty-Five Years of Ideological Homicide Victimization in the United States of America  (START Reports)
Victims of Ideological Homicides, 1990-2014  (Research Brief)
Routine Activities and Right-Wing Extremists: An Empirical Comparison of the Victims of Ideologically Motivated and Non-Ideologically Motivated Homicides Committed by American Far-Rightists  (Journal Article)
Financial Crimes Perpetrated by Far-Right Extremists in the United States: 1990-2013  (Research Brief)
Examining the Effect of Repressive and Conciliatory Government Actions on Terrorism Activity in Israel  (Journal Article)
Research Brief: Validation of the Nationwide Suspicious Activity Reporting (SAR) Initiative  (Research Brief)
Validation of the Nationwide Suspicious Activity Reporting (SAR) Initiative: Identifying Suspicious Activities from the Extremist Crime Database (ECDB) and the American Terrorism Study (ATS)  (START Reports)
Investigating the Applicability of Macro-Level Criminology Theory to Terrorism: A County-Level Analysis  (Journal Article)
Far-right Violence in the United States: 1990-2013  (Fact Sheet)
Violence Perpetrated by Supporters of Al-Qa’ida and Affiliated Movements (AQAM): Fatal Attacks and Violent Plots in the United States  (Research Brief)
Violence Perpetrated by Supporters of Al-Qa’ida and Affiliated Movements (AQAM): Fatal Attacks and Violent Plots in the United States  (START Reports)
Ideological Victimization: Homicides Perpetrated by Far-Right Extremists  (Journal Article)
Introducing the United States Extremist Crime Database (ECDB)  (Journal Article)
An Overview of Bombing and Arson Attacks by Environmental and Animal Rights Extremists in the United States, 1995-2010  (START Reports)
Research Highlight: Bombing and Arson Attacks by Environmental and Animal Rights Extremists in the United States, 1995-2010  (Research Brief)
Al-Qa'ida - Related Terrorism: Violent Incidents and Foiled Plots  (Research Brief)
Examining the Relationship between General Social Survey (GSS) Measures and Far-Right Ideological Violence: A County-Level Analysis  (START Reports)
Examining the Relationship between the Presence of Hate Groups and the Presence of Violent Far-Right Perpetrators at the County Level  (START Reports)

News References

The Conversation: 19 years after 9/11, Americans continue to fear foreign extremists and underplay the dangers of domestic terrorism
Ideologically motivated far-right extremists have killed close to 500 people since 1990 – and 10 percent were targeted based on religion  (Discussion Point)
The Conversation: Ideologically motivated far-right extremists have killed close to 500 people since 1990 – and 10 percent were targeted based on religion
Fact Sheet: Far-Right Fatal Ideological Violence against Religious Institutions and Individuals in the United States: 1990 – 2018  (Featured Research)
Salon: Why cops kill black people: Research suggests a troubling pattern of “retaliatory violence”
The Conversation: Did far-right extremist violence really spike in 2017?
The Conversation UK: Threats of violent Islamist and far-right extremism: What does the research say?
Threats of violent Islamist and far-right extremism: What does the research say?  (Discussion Point)
New Republic: Was the Orlando Shooting a Hate Crime or Terrorist Act? The Answer Matters
New study compares ideologically motivated homicides in United States  (Featured Research)
Financial crimes perpetrated by far-right extremists  (Featured Research)
START study assesses attacks by environmental and animal rights extremists  (Featured Research)
Research Highlight: Al-Qa'ida-Related Terrorism - Violent Incidents and Foiled Plots  (Featured Research)
CNN: Understanding America’s domestic extremist threat
Various: Coverage of Far-right Violence Fact Sheet
New research examines financial crime and political extremism  (Featured Research)
**Far-Right Attacks on U.S. Law Enforcement and Security Guards**  (Featured Research)
**Background Information: Far-Right Attacks on U.S. Law Enforcement **  (Featured Research)
START Announces 2009-10 Terrorism Research Awards  (News)