The findings of a fantastic study comparing the biographical backgrounds and radicalisation dynamics of lone-actor and group-based terrorists were recently published. The research draws upon a new dataset to assess predictors of involvement in terrorist violence, examining variables such as criminal antecedents, social isolation, perceived social skills, non-violent activism, and age at radicalisation onset.
The first key finding is that group-based terrorists are more likely to be associated with extremist movements operating in prisons than lone-actor terrorists. This association is attributed to the more extensive outreach of these movements, generating opportunities for group-based engagement. The lower prevalence of such movements among lone actors suggests fewer opportunities for these individuals to engage with like-minded groups.
The study also found a higher incidence of criminal antecedents among group-based terrorists. This finding supports the notion of a “crime-terror nexus,” where criminals’ skillsets may be sought after by terrorist groups, and incarceration can lead to radicalisation. A person with criminal antecedents is more likely to encounter or be recruited by extremist groups, thus creating more opportunities for group-based involvement.
Another significant finding revolves around perceived social competence. Lone-actor terrorists were perceived to have poorer social skills than group-based terrorists, which may prevent them from joining active terrorist cells or groups. In some cases, these individuals resort to terrorism as a lone actor out of necessity, rather than a conscious decision to avoid detection.
Group-based terrorists are also more likely to engage in non-violent activism and have children, be in a relationship, and less likely to be socially isolated during their radicalisation process. While the study found a higher prevalence of mental disorder among lone-actor terrorists, this difference was not statistically significant. However, a distinct finding was that lone-actor terrorists tend to radicalise at an older age than group-based terrorists.
The research concluded that lone-actor terrorists should not be considered a completely different category of terrorist offenders. Rather than stark differences, the study highlighted nuanced variations and numerous commonalities between the two groups, such as higher social isolation and incidence of diagnosed mental health issues among lone-actors. Therefore, prevention strategies need not be entirely different for these two forms of terrorism.
These findings underline the importance of context and social settings in radicalisation processes. An improved understanding of the influence of these biographical factors and social contexts on radicalisation outcomes can contribute to early detection and intervention efforts, ultimately enhancing our ability to mitigate the threat of terrorism.