{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,24]],"date-time":"2026-09-24T15:01:56Z","timestamp":1790262116285,"version":"4.1.0"},"reference-count":27,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2018,4,23]],"date-time":"2018-04-23T00:00:00Z","timestamp":1524441600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Journal of Forensic Sciences"],"published-print":{"date-parts":[[2018,11]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>This is a case report of the offender and offense characteristics of a targeted attack on a Swedish school using a sword, with a particular focus upon the offender's history, the relationship between mental disorder and ideology, and whether or not it was an act of terrorism. Findings indicate that the offender had no drug or psychiatric treatment history, but postoffense analysis suggests autism spectrum disorder, depression, and both suicidal ideation and intent. The offender planned and prepared for his attack, and the triggering event appeared to be the loss of a temporary job. He expressed chronic anger concerning immigrants to Sweden and blamed them for his failures. Comparison of the fact pattern to other cases of lone actor terrorism with the Terrorist Radicalization Assessment Protocol (<jats:styled-content style=\"fixed-case\">TRAP<\/jats:styled-content>\u201018) empirically demonstrates excellent criterion validity with other lone actor terrorists in Europe and North America\u2014including right wing extremists\u2014and contributes to further understanding of ideologically motivated mass murder.<\/jats:p>","DOI":"10.1111\/1556-4029.13800","type":"journal-article","created":{"date-parts":[[2018,4,23]],"date-time":"2018-04-23T21:32:18Z","timestamp":1524519138000},"page":"1917-1927","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":22,"title":["The Swedish School Attack in Trollh\u00e4ttan"],"prefix":"10.1111","volume":"63","author":[{"given":"\u00c5sa","family":"Erlandsson","sequence":"first","affiliation":[{"name":"Svensk Polis Polhemsgatan 30 112 30 Stockholm Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"J.","family":"Reid Meloy","sequence":"additional","affiliation":[{"name":"Department of Psychiatry School of Medicine University of California, San Diego 9500 Gilman Drive La Jolla CA 92093"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2018,4,23]]},"reference":[{"key":"e_1_2_11_2_1","unstructured":"Police Investigation Anton Lundin Pettersson diarienr 5000\u2010K1353421\u20101; masked version of this report is available upon request of the Swedish Police (polisen.se) 2016."},{"key":"e_1_2_11_3_1","volume-title":"The final report and findings of the safe school initiative: implications for the prevention of school attacks in the United States","author":"Vossekuil B","year":"2002"},{"key":"e_1_2_11_4_1","doi-asserted-by":"publisher","DOI":"10.1097\/00004583-200106000-00018"},{"key":"e_1_2_11_5_1","volume-title":"Campus attacks: targeted violence affecting institutions of higher education","author":"Drysdale D Modzeleski W","year":"2010"},{"key":"e_1_2_11_6_1","unstructured":"Tidigare skolattacker i Sverige [Previous school attacks in Sweden];https:\/\/www.dn.se\/nyheter\/tidigare-skolattacker-i-sverige\/(accessedJuly 1 2016)."},{"key":"e_1_2_11_7_1","unstructured":"Tillbaka p\u00e5 Kronan [Return to Kronan school];http:\/\/www.svenskpolis.se\/Artikelarkiv\/Artiklar-20161\/Februari-2016\/Tillbaka-pa-Kronan\/(accessedNovember 1 2017)."},{"key":"e_1_2_11_8_1","volume-title":"Det som aldrig fick ske: skolattentatet i Trollh\u00e4ttan [What never had to happen: the school attack in Trolhattan]","author":"Erlandsson \u00c5","year":"2017"},{"key":"e_1_2_11_9_1","doi-asserted-by":"publisher","DOI":"10.1037\/tam0000061"},{"key":"e_1_2_11_10_1","unstructured":"Attacken i Trollh\u00e4ttan: Anton Lundin Petterssons rasistiska v\u00e4rld [The attack in Trolhattan: the racist world of Anton Lundin Pettersson];https:\/\/www.expressen.se\/gt\/attacken-i-trollhattan-anton-lundin-petterssons-rasistiska-varld\/(accessedNovember 2 2017)."},{"key":"e_1_2_11_11_1","unstructured":"Police Investigation Anton Lundin Pettersson diarienr 5000\u2010K1353421\u201015; a masked version of this report is available upon request of the Swedish Police (polisen.se) 2016. 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