This study analyzes the demographics, criminality, and network relations of forty-one deceased Swedish foreign fighters. Our results show that most of the deceased Swedish foreign fighters were on average just under 26 years old when they died. Concerning network relations, nineteen out of the forty-one foreign fighters had at least one relationship (next-of-kin or friend) with another deceased foreign fighter. Two thirds were previously suspected of at least one crime. Based on our results, we argue that more attention needs to be given to tertiary and secondary prevention directed toward foreign fighter hubs.

This population-based time-trend study examines gun violence rates among males in Sweden during the years 1996 to 2015 and compares the rate in Sweden to other Western European countries. Data were collected from six registries and are presented descriptively per 100,000 inhabitants. The risks among males in Sweden increased considerably in both lethal and non-lethal gun victimization and perpetration. Among males aged 15 to 29 there was a five-fold increase in risk for victimization in lethal and non-lethal gun violence during the 20-year observation period. In a comparative perspective the rate of gun homicide victimization among males 15 to 29 years was higher in Sweden compared to other Western European countries, while the risk for males over age 30 was at an average level. Based on the results of this study we conclude that gun violence among young males in Sweden has been on the rise and is at a high level compared to other Western European countries. The development of gun violence in Sweden can be characterized as endemic, prevalent in both population and socially vulnerable areas.

Homicide committed by female offenders is an understudied phenomenon. This study examines whether incidence rates of male-perpetrated and female-perpetrated homicide have changed from 1990 to 2010, and investigates similarities and differences between male and female homicide offenders, by examining a dataset comprising all cases of homicide in Sweden (N = 1,570). The results indicate a decline in the incidence of both male-perpetrated and female-perpetrated homicide during the observed period, as well as stable proportions of female offenders. There were also pronounced differences between male and female homicide offenders with adult victims: victims of female offenders were more often male, intimate partners, intoxicated at the time of the offense, and killed by sharp force injuries. Previous violence between victim and offender was also more common in cases with female offenders, and they committed homicide-suicide less often. There were less pronounced differences between male and female homicide offenders with child victims, but female offenders more often used asphyxia and less often had previous convictions. It can be concluded that incidence rates for male-perpetrated and female-perpetrated homicide have decreased in Sweden, and that male and female offenders with child victims are more similar than male and female offenders with adult victims.

It is recognized that the majority of intimate partner homicide (IPH) victims are female; simultaneously, when females do commit homicide, they are more likely to perpetrate against an intimate partner. To date, there are only a few studies that discuss IPH across gender, leading to a gap of knowledge with regard to gender aspects of perpetration. The present nationwide study has a retrospective design, based on registries of all female (n = 9) and stratified male (n = 36) IPH committed in Sweden between 2007 and 2009. Our study suggests that female perpetrators are more likely to be unemployed, to have suffered from a substance abuse disorder at some point in life and to have been victimized by the victim. In other words, scrutiny of these characteristics reveals that females who commit partner-related homicides are qualitatively and clinically different from their male counterparts. Furthermore, the prevailing feature of intoxication in connection to the crime, both in male and female perpetrators, indicates that perpetrators might benefit from elements of substance abuse treatment in interventions targeting partner violence.

The clearance rates for homicides have decreased internationally. This retrospective population-based study of all Swedish homicide incidents between 2007 and 2009 (n = 264) aims to investigate factors associated with solvability in homicides. Victims were identified in an autopsy registry and offenders in a criminal-conviction registry. Autopsy reports, police files, court verdicts and criminal records were systematically collected and linked. The clearance rate was 86.4% (n = 228), and almost three quarters of cases (71.9%) were solved within the first week. Nine factors were significantly associated with the case status; however, only four factors remained significant in the multivariate logistic-regression model. Cases were more likely to be solved if there was an eyewitness and if the victim was intoxicated with alcohol. Moreover, cases were less likely to be solved if the victim had a criminal record in the past five years and was killed by a firearm. In the final model, a Cox proportional-hazards model, where time to arrest was taken into account, only alcohol intoxication were positively and firearms negatively significantly associated with clearance status. The study concludes that cases involving these factors should be granted extra, intensive and lasting resources.