Förekomsten av psykisk ohälsa bland ensamagerande våldsverkare i Sverige studerades genom en tematisk analys på textdokument. Trettiofem av 70 ensamagerande våldsverkare valdes ut genom ett systematiskt slumpmässigt urval. Textdokumenten innehåller sekretessbelagd information ifrån Polismyndighetens system. Av de undersökta ensamagerande våldsverkarna hade 43 % en psykiatrisk diagnos och tecken på psykisk ohälsa fanns hos 34 %. Resultatet går i linje med internationell forskning som visar att ungefär 40 % av ensamagerande våldsverkare innehar en psykiatrisk diagnos. Sammanfattningsvis i aktuell studie uppvisade 77 % av de ensamagerande våldsverkarna tecken på psykisk ohälsa vilket kan indikera att antalet med psykiatriska diagnoser i studien kan ha underskattats. Således visade studien att psykisk ohälsa är en viktig riskfaktor för våld och Polismyndigheten behöver samverka med andra samhällsaktörer för att kunna förebygga, förhindra och upptäcka brottslighet från ensamagerande våldsverkare. / The frequency of mental illness among lone actors in Sweden were studied through a thematic analysis on textual documents. Thirty-five of 70 lone actors were chosen with a systematic randomized method. The textual documents contain closed source data from The Swedish Police Authority. Of the studied lone actors 43 % had a mental disorder and signs of mental illness were observed in 34 %. The findings are consistent with previous international research that shows that approximately 40 % of lone actors have a mental disorder. In summary current study outlines that 77 % of lone actors in Sweden show signs of mental illness which can indicate that the quantity of mental disorders could have been underestimated. Finally mental illness appears to be an important risk factor for violence and The Swedish Police Authority needs to cooperate with other social actors to be able to prevent and discover violent crimes from future lone actors.

The new phenomena of “school attacks” has emerged in Sweden since 2015. Between 2015 and today (2022), Sweden has been a subject of four “school attacks”, whereas three of these attacks have occurred within a period of seven months. In this thesis I aim to gain an in-depth insight about how “school attacks” are represented in the Swedish national strategy against violent extremism and further, to distinguish whether “school attacks” have been securitized in the national strategy. To study this, I will apply the securitization theory by Thierry Balzacq through the methodological framework of a WPR (What’s the problem represented to be?) discourse analysis on the material consisting of the Swedish national strategy against violent extremism from 2016. The findings suggest that there appears to be an undermining of right-wing extremism and exclusion of the loneactor of extremism in the strategy’s claims regarding what is the most prominent extremism-related threat to the State of Sweden and Swedish interests. Furthermore, I was able to distinguish that “school attacks” were not securitized in the Swedish national strategy against violent extremism.