Browse by UCL people
Group by: Type | Date
Number of items: 84.
Article
Asal, V;
Gill, P;
Rethemeyer, K;
Horgan, J;
(2014)
Killing Range: Explaining Lethality Variance Within a Terrorist Organization.
Journal of Conflict Resolution: research on war and peace between and within nations
, 59
(3)
pp. 401-427.
10.1177/0022002713508927.
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Bouhana, N;
Corner, E;
Gill, P;
Schuurman, BW;
(2018)
Background and Preparatory Behaviours of Right-Wing Extremist Lone Actors: A Comparative Study.
Perspectives on Terrorism
, 12
(6)
pp. 150-163.
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Chinda, Chris;
Unal, Cigdem;
Marchment, Zoe;
Gill, Paul;
(2023)
The Impact of Public Holidays on Insurgent Attacks: The Case of Thailand.
Terrorism and Political Violence
10.1080/09546553.2023.2222810.
(In press).
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Clemmow, C;
Bouhana, N;
Gill, P;
(2020)
Analysing person-exposure patterns in lone-actor terrorism: Implications for threat assessment and intelligence gathering.
Criminology and Public Policy
, 19
(2)
pp. 451-482.
10.1111/1745-9133.12466.
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Clemmow, C;
Rottweiler, B;
Gill, P;
(2022)
EXPO-12: Development and validation of the Exposure to Violent Extremism Scale.
Psychology of Violence
, 12
(5)
pp. 333-346.
10.1037/vio0000430.
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Clemmow, C;
Rottweiler, B;
Wolfowicz, M;
Bouhana, N;
Marchment, Z;
Gill, P;
(2023)
The Whole Is Greater than the Sum of Its Parts: Risk and Protective Profiles for Vulnerability to Radicalization.
Justice Quarterly
pp. 1-27.
10.1080/07418825.2023.2171902.
(In press).
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Clemmow, Caitlin;
van der Vegt, Isabelle;
Rottweiler, Bettina;
Schumann, Sandy;
Gill, Paul;
(2024)
Crowdsourcing Samples for Research on Violent Extremism: A Research Note.
Terrorism and Political Violence
, 36
(3)
pp. 267-282.
10.1080/09546553.2022.2145193.
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Clemmow, C;
Gill, P;
Bouhana, N;
Silver, J;
Horgan, J;
(2020)
Disaggregating Lone-actor Grievance-fuelled Violence: Comparing Lone-actor Terrorists and Mass Murderers.
Terrorism and Political Violence
10.1080/09546553.2020.1718661.
(In press).
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Clemmow, C;
Gill, P;
Corner, E;
Farnham, F;
Taylor, R;
Wilson, S;
Taylor, A;
(2021)
A data-driven classification of outcome behaviors in those who cause concern to British public figures.
Psychology, Public Policy, and Law
10.1037/law0000269.
(In press).
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Clemmow, C;
Schumann, S;
Salman, NL;
Gill, P;
(2020)
The Base Rate Study: Developing Base Rates for Risk Factors and Indicators for Engagement in Violent Extremism.
Journal of Forensic Sciences
10.1111/1556-4029.14282.
(In press).
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Corner, E;
Taylor, H;
Van Der Vegt, I;
Salman, N;
Rottweiler, B;
Hetzel, F;
Clemmow, C;
... Gill, P; + view all
(2021)
Reviewing the links between violent extremism and personality, personality disorders, and psychopathy.
The Journal of Forensic Psychiatry & Psychology
, 32
(3)
pp. 378-407.
10.1080/14789949.2021.1884736.
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Corner, E;
Bouhana, N;
Gill, P;
(2018)
The multifinality of vulnerability indicators in lone-actor terrorism.
Psychology, Crime and Law
, 25
(2)
pp. 111-132.
10.1080/1068316X.2018.1503664.
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Corner, E;
Gill, P;
(2021)
Psychological distress and terrorist engagement: Measuring, correlating, and sequencing its onset with negative life events, social factors, and protective factors.
Transcultural Psychiatry
10.1177/13634615211023669.
(In press).
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Corner, E;
Gill, P;
(2019)
Psychological Distress, Terrorist Involvement and Disengagement from Terrorism: A Sequence Analysis Approach.
Journal of Quantitative Criminology
, 36
pp. 499-526.
10.1007/s10940-019-09420-1.
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Corner, E;
Gill, P;
(2018)
The nascent empirical literature on psychopathology and terrorism.
World Psychiatry
, 17
(2)
pp. 147-148.
10.1002/wps.20547.
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Corner, E;
Gill, P;
(2017)
Is There a Nexus Between Terrorist Involvement and Mental Health in the Age of the Islamic State?
The CTC Sentinel
, 10
(1)
pp. 1-10.
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Corner, E;
Gill, P;
(2015)
A False Dichotomy? Mental Illness and Lone-Actor Terrorism.
Law and Human Behavior
, 39
(1)
23 - 34.
10.1037/lhb0000102.
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Corner, E;
Gill, P;
Mason, O;
(2016)
Mental Health Disorders and the Terrorist: A Research Note Probing Selection Effects and Disorder Prevalence.
Studies in Conflict and Terrorism
, 39
(6)
pp. 560-568.
10.1080/1057610X.2015.1120099.
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Corner, E;
Gill, P;
Schouten, R;
Farnham, F;
(2018)
Mental Disorders, Personality Traits, and Grievance-Fueled Targeted Violence: The Evidence Base and Implications for Research and Practice.
Journal of Personality Assessment
, 100
(5)
pp. 459-470.
10.1080/00223891.2018.1475392.
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Gill, P;
Clemmow, C;
Hetzel, F;
Rottweiler, B;
Salman, N;
Van der Vegt, I;
Marchment, Z;
... Corner, E; + view all
(2021)
Systematic Review of Mental Health Problems and Violent Extremism.
The Journal of Forensic Psychiatry & Psychology
, 32
(1)
pp. 51-78.
10.1080/14789949.2020.1820067.
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Gill, P;
(2017)
Tactical Innovation and the Provisional Irish Republican Army.
Studies in Conflict and Terrorism
, 40
(7)
pp. 573-585.
10.1080/1057610X.2016.1237221.
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Gill, P;
(2016)
Lone-Actor Terrorist Target Choice.
Behavioral Sciences & the Law
, 34
(5)
pp. 693-705.
10.1002/bsl.2268.
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Gill, P;
(2016)
Toward a scientific approach to identifying and understanding indicators of radicalization and terrorist intent: Eight key problems.
Journal of Threat Assessment and Management
, 2
(3)
pp. 187-191.
10.1037/tam0000047.
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Gill, P;
Corner, E;
(2017)
There and Back Again: The Study of Mental Disorder and Terrorist Involvement.
American Psychologist
, 72
(3)
pp. 231-241.
10.1037/amp0000090.
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Gill, P;
Corner, E;
(2013)
Disaggregating Terrorist Offenders: Implications for Research and Practice.
Criminology and Public Policy
, 12
(1)
93 - 101.
10.1111/1745-9133.12015.
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Gill, P;
Corner, E;
Conway, M;
Thornton, A;
Bloom, M;
Horgan, J;
(2017)
Terrorist Use of the Internet by the Numbers: Quantifying Behaviors, Patterns and Processes.
Criminology & Public Policy
, 16
(1)
pp. 99-117.
10.1111/1745-9133.12249.
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Gill, P;
Corner, E;
Farnham, F;
Wilson, S;
Marchment, Z;
Taylor, A;
Taylor, R;
(2021)
Predictors of varying levels of risks posed by fixated individuals to British public figures.
Journal of Forensic Sciences
10.1111/1556-4029.14708.
(In press).
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Gill, P;
Corner, E;
McKee, A;
Hitchen, P;
Betley, P;
(2019)
What Do Closed Source Data Tell Us About Lone Actor Terrorist Behavior? A Research Note.
Terrorism and Political Violence
10.1080/09546553.2019.1668781.
(In press).
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Gill, P;
Horgan, J;
(2013)
Who were the Volunteers? The Shifting Sociological and Operational Profile of 1240 Provisional Irish Republican Army Members.
Terrorism and Political Violence
, 25
(3)
435 - 456.
10.1080/09546553.2012.664587.
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Gill, P;
Horgan, J;
Corner, E;
(2017)
The Rational Foraging Terrorist: Analysing the Distances Travelled to Commit Terrorist Violence.
Terrorism and Political Violence
pp. 1-14.
10.1080/09546553.2017.1297707.
(In press).
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Gill, P;
Horgan, J;
Corner, E;
Silver, J;
(2017)
Risk Factors and Lone Actor Violent Events: The Problems of Low Base Rates and Long Observational Periods.
Journal of Threat Assessment and Management
, 3
(3-4)
pp. 165-173.
10.1037/tam0000066.
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Gill, P;
Horgan, J;
Deckert, P;
(2014)
Bombing Alone: Tracing the Motivations and Antecedent Behaviors of Lone-Actor Terrorists.
Journal of Forensic Sciences
, 59
(2)
pp. 425-435.
10.1111/1556-4029.12312.
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Gill, P;
Horgan, J;
Hunter, S;
Cushenbery, L;
(2013)
Malevolent Creativity in Terrorist Organizations.
The Journal of Creative Behavior
, 47
(2)
pp. 125-151.
10.1002/jocb.28.
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Gill, P;
Lee, J;
Rethemeyer, K;
Horgan, J;
Asal, V;
(2014)
Lethal Connections: The Determinants of Network Connections in the Provisional Irish Republican Army, 1970-1998.
International Interactions: Empirical and Theoretical Research in International Relations
, 40
(1)
52 - 78.
10.1080/03050629.2013.863190.
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Gill, P;
Marchment, Z;
Corner, E;
Bouhana, N;
(2020)
Terrorist Decision-Making In The Context of Risk, Attack Planning and Attack Commission.
Studies in Conflict and Terrorism
, 43
(2)
pp. 145-160.
10.1080/1057610X.2018.1445501.
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Gill, P;
Piazza, J;
Horgan, J;
(2016)
Counterterrorism Killings and Provisional IRA Bombings, 1970-1998.
Terrorism and Political Violence
, 28
(3)
pp. 473-496.
10.1080/09546553.2016.1155932.
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Gill, P;
Silver, J;
Horgan, J;
Corner, E;
(2017)
Shooting Alone: The Pre-Attack Experiences and Behaviors of U.S. Solo Mass Murderers with Implications for Threat Assessments.
Journal of Forensic Sciences
, 62
(3)
pp. 710-714.
10.1111/1556-4029.13330.
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Gill, P;
Silver, J;
Horgan, J;
Corner, E;
Bouhana, N;
(2021)
Similar crimes, similar behaviors? Comparing lone-actor terrorists and public mass murderers.
Journal of Forensic Sciences
10.1111/1556-4029.14793.
(In press).
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Gill, P;
Tompson, L;
Marchment, Z;
Hetzel, F;
Zolghadriha, S;
Sidebottom, A;
(2020)
A configurative synthesis of evidence for fear in the criminal decision-making process.
Security Journal
, 33
pp. 581-601.
10.1057/s41284-019-00201-w.
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Keatley, DA;
Arntfield, M;
Gill, P;
Clare, J;
Oatley, G;
Bouhana, N;
Clarke, D;
(2019)
Behaviour Tracking: Using geospatial and behaviour sequence analysis to map crime.
Security Journal
10.1057/s41284-019-00216-3.
(In press).
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Kemp, L;
Zolghadriha, S;
Gill, P;
(2020)
Pathways into organized crime: comparing founders and joiners.
Trends in Organized Crime
, 23
pp. 203-226.
10.1007/s12117-019-09371-w.
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Kunst, JR;
Obaidi, M;
Coenen, AC;
Vasseljen, VD;
Gill, P;
(2021)
What Makes a Terrorist? Muslims’ and non-Muslims’ Lay Perceptions of Risk Factors and Their Consequences for Counter-terrorism Policy Support.
Terrorism and Political Violence
10.1080/09546553.2021.1967149.
(In press).
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LaFree, Gary;
Gill, Paul;
(2024)
Strengths and Weaknesses of Open Source Data for Studying Terrorism and Political Radicalization.
Studies in Conflict & Terrorism
10.1080/1057610X.2024.2361948.
(In press).
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Manrique, P;
Cao, Z;
Gabriel, A;
Horgan, J;
Gill, P;
Qi, H;
Restrepo, E;
... Johnson, N; + view all
(2016)
Women's Connectivity in Extreme Networks.
Science Advances
, 2
(6)
, Article e1501742. 10.1126/sciadv.1501742.
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Marchment, Z;
Frith, MJ;
Morrison, J;
Gill, P;
(2021)
A multi-level analysis of risky streets and neighbourhoods for dissident republican violence in belfast.
ISPRS International Journal of Geo-Information
, 10
(11)
, Article 765. 10.3390/ijgi10110765.
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Marchment, Z;
Bouhana, N;
Gill, P;
(2020)
Lone Actor Terrorists: A Residence-to-Crime Approach.
Terrorism and Political Violence
, 32
(7)
pp. 1413-1438.
10.1080/09546553.2018.1481050.
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Marchment, Z;
Gill, P;
(2021)
Systematic review and meta-analysis of risk terrain modelling (RTM) as a spatial forecasting method.
Crime Science
, 10
, Article 12. 10.1186/s40163-021-00149-6.
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Marchment, Z;
Gill, P;
(2020)
Spatial Decision Making of Terrorist Target Selection: Introducing the TRACK Framework.
Studies in Conflict and Terrorism
10.1080/1057610X.2020.1711588.
(In press).
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Marchment, Z;
Gill, P;
(2019)
Modelling the spatial decision making of terrorists: The discrete choice approach.
Applied Geography
, 104
pp. 21-31.
10.1016/j.apgeog.2019.01.009.
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Marchment, Z;
Gill, P;
Morrison, J;
(2019)
Risk Factors for Violent Dissident Republican Incidents in Belfast: A Comparison of Bombings and Bomb Hoaxes.
Journal of Quantitative Criminology
10.1007/s10940-019-09413-0.
(In press).
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Meloy, R;
Gill, P;
(2016)
The Lone Actor Terrorist and the TRAP-18.
Journal of Threat Assessment and Management
, 3
(1)
pp. 37-52.
10.1037/tam0000061.
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Morrison, J;
Gill, P;
(2016)
100 Years of Irish Republican Violence: Introduction to the Special Issue.
Terrorism and Political Violence
, 28
(3)
pp. 409-416.
10.1080/09546553.2016.1155927.
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Perez Esparza, D;
Johnson, SD;
Gill, P;
(2020)
Why did Mexico become a violent country? Assessing the role of firearms trafficked from the U.S.
Security Journal
, 33
pp. 179-209.
10.1057/s41284-019-00178-6.
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Robinson, A;
Marchment, Z;
Gill, P;
(2019)
Domestic extremist criminal damage events: behaving like criminals or terrorists?
Security Journal
, 32
(2)
pp. 153-167.
10.1057/s41284-018-0153-2.
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Rottweiler, B;
Clemmow, C;
Gill, P;
(2023)
A Common Psychology of Male Violence? Assessing the Effects of Misogyny on Intentions to Engage in Violent Extremism, Interpersonal Violence and Support for Violence against Women.
Terrorism and Political Violence
10.1080/09546553.2023.2292723.
(In press).
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Rottweiler, B;
Gill, P;
Bouhana, N;
(2022)
Individual and Environmental Explanations for Violent Extremist Intentions: A German Nationally Representative Survey Study.
Justice Quarterly
, 39
(4)
pp. 825-846.
10.1080/07418825.2020.1869807.
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Rottweiler, Bettina;
Gill, Paul;
(2022)
Individual Differences in Personality Moderate the Effects of Perceived Group Deprivation on Violent Extremism: Evidence From a United Kingdom Nationally Representative Survey.
Front Psychol
, 13
, Article 790770. 10.3389/fpsyg.2022.790770.
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Rottweiler, B;
Gill, P;
(2020)
Conspiracy Beliefs and Violent Extremist Intentions: The Contingent Effects of Self-efficacy, Self-control and Law-related Morality.
Terrorism and Political Violence
10.1080/09546553.2020.1803288.
(In press).
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Salman, NL;
Gill, P;
(2020)
A survey of risk and threat assessors: Processes, skills, and characteristics in terrorism risk assessment.
Journal of Threat Assessment and Management
, 7
(1-2)
pp. 122-129.
10.1037/tam0000135.
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Schumann, S;
Salman, NL;
Clemmow, C;
Gill, P;
(2022)
Does cognitive inflexibility predict violent extremist behaviour intentions? A registered direct replication report of Zmigrod et al., 2019.
Legal and Criminological Psychology
, 27
(2)
pp. 329-353.
10.1111/lcrp.12201.
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Schumann, S;
Salman, NL;
Clemmow, C;
Gill, P;
(2021)
Does cognitive inflexibility predict violent extremist behaviour intentions? A registered direct replication report of Zmigrod, Rentfrow, & Robbins, 2019.
Legal and Criminological Psychology
, 26
(2)
pp. 145-157.
10.1111/lcrp.12186.
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Schumann, Sandy;
Clemmow, Caitlin;
Rottweiler, Bettina;
Gill, Paul;
(2024)
Distinct patterns of incidental exposure to and active selection of radicalizing information indicate varying levels of support for violent extremism.
PLoS ONE
, 19
(2)
, Article e0293810. 10.1371/journal.pone.0293810.
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Schumann, S;
Osborne, D;
Gill, P;
Fell, BF;
Hewstone, M;
(2020)
Radical news? Immigrants’ television use, acculturation challenges, and support for terrorism.
Behavioral Sciences of Terrorism and Political Aggression
10.1080/19434472.2020.1779782.
(In press).
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Schumann, S;
van der Vegt, I;
Gill, P;
Schuurman, B;
(2019)
Towards open and reproducible terrorism studies: Current trends and next steps.
Perspectives on Terrorism
, 13
(5)
pp. 61-73.
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Schuurman, B;
Bakker, E;
Gill, P;
Bouhana, N;
(2018)
Lone Actor Terrorist Attack Planning and Preparation: A Data-Driven Analysis.
Journal of Forensic Sciences
, 63
(4)
pp. 1191-1200.
10.1111/1556-4029.13676.
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Schuurman, B;
Lindekilde, L;
Malthaner, S;
O'Connor, F;
Gill, P;
Bouhana, N;
(2019)
End of the Lone Wolf: The Typology that Should Not Have Been.
Studies in Conflict and Terrorism
, 42
(8)
pp. 771-778.
10.1080/1057610X.2017.1419554.
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Silver, J;
Horgan, J;
Gill, P;
(2019)
Shared Struggles? Cumulative Strain Theory and Public Mass Murderers from 1990 to 2014.
Homicide Studies
, 23
(1)
pp. 64-84.
10.1177/1088767918802881.
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Silver, J;
Horgan, J;
Gill, P;
(2018)
Foreshadowing targeted violence: Assessing leakage of intent by public mass murderers.
Aggression and Violent Behavior
, 38
pp. 94-100.
10.1016/j.avb.2017.12.002.
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Tench, S;
Fry, H;
Gill, P;
(2016)
Spatio-temporal patterns of IED usage by the Provisional Irish Republican Army.
European Journal of Applied Mathematics
, 27
(3)
pp. 377-402.
10.1017/S0956792515000686.
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van der Vegt, I;
Kleinberg, B;
Gill, P;
(2023)
Proceed with caution: on the use of computational linguistics in threat assessment.
Journal of Policing, Intelligence and Counter Terrorism
10.1080/18335330.2023.2165137.
(In press).
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Van Der Vegt, I;
Marchment, Z;
Clemmow, C;
Gill, P;
(2019)
Learning from the parallel field of terrorism studies.
Journal of Threat Assessment and Management
, 6
(3-4)
pp. 202-209.
10.1037/tam0000133.
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van der Vegt, I;
Mozes, M;
Kleinberg, B;
Gill, P;
(2021)
The Grievance Dictionary: Understanding threatening language use.
Behavior Research Methods
10.3758/s13428-021-01536-2.
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Vegt, IVD;
Mozes, M;
Gill, P;
Kleinberg, B;
(2020)
Online influence, offline violence: Language Use on YouTube surrounding the 'Unite the Right' rally.
Journal of Computational Social Science
, 4
pp. 333-354.
10.1007/s42001-020-00080-x.
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Wolfowicz, M;
Campedelli, GM;
Seaward, A;
Gill, P;
(2023)
RETRACTED ARTICLE: Arrests and convictions but not sentence length deter terrorism in 28 European Union member states.
Nature Human Behaviour
, 7
pp. 1878-1889.
10.1038/s41562-023-01695-6.
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Book chapter
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Bouhana, Noemie;
Corner, Emily;
Gill, Paul;
(2022)
A Risk Analysis Framework of Lone-Actor Terrorism.
In: Holzer, Jacob C and Dew, Andrea J and Recupero, Patricia R and Gill, Paul, (eds.)
Lone-Actor Terrorism: An Integrated Framework.
(287-C22.P180).
Oxford University Press: Oxford, UK.
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Corner, E;
Bouhana, N;
Gill, P;
(2021)
Updating and organizing our knowledge of risk and protective factors for lone-actor terrorism.
In:
Terrorism Risk Assessment Instruments: Contemporary Policy and Law Enforcement Challenges.
(pp. 116-136).
IOS Press: Amsterdam, Netherlands.
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Ekblom, P;
Gill, P;
(2018)
Evolution, Crime Science and Terrorism: The Case of Provisional IRA Weaponry.
In: Wortley, R and Sidebottom, A and Tilley, N and Laycock, G, (eds.)
Routledge Handbook of Crime Science.
(pp. 252-270).
Routledge: London, UK.
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Gill, P;
Braddock, K;
Zolghadriha, S;
Rottweiler, B;
Cushenbery, L;
(2019)
Terrorist Propaganda after IS: Learning, Emulation, and Imitation.
In: BAELE, S and Boyd, K and Coan, T, (eds.)
ISIS Propaganda.
Oxford University Press: Oxford, UK.
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Gill, P;
Marchment, Z;
Rottweiler, B;
Zolghadriha, S;
(2020)
Jihad and the United Kingdom.
In: Smith, T, (ed.)
Exporting Global Jihad Critical Perspectives from Africa and Europe.
(pp. 139-155).
I.B. Tauris: London, UK.
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Marchment, Z;
Gill, P;
(2020)
Psychological and Criminological Understanding of Terrorism: Theories and Models.
In: Ireland, C and Lewis, M and Lopez, A and Ireland, J, (eds.)
The Handbook of Collective Violence: Current Developments and Understanding.
(pp. 100-111).
Routledge: London, UK.
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Report
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Clemmow, Caitlin;
Marchment, Zoe;
Rottweiler, Bettina;
Doherty, Phil;
Seaward, Amber;
Unal, Cigdem;
Garrido Marques, Tiago;
+ view all
(2025)
A review of the literature on how the
systems of support available to young
people and their families work to prevent
serious violence.
Youth Endowment Fund: London, UK.
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Horgan, J;
Gill, P;
Bouhana, N;
Silver, J;
Corner, E;
(2016)
Across the Universe? A Comparative Analysis of Violent Radicalization Across Three Offender Types with Implications for Criminal Justice Training and Education.
The Office of Justice Programs:NCJRS: USA.
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Salman, N;
Gill, P;
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