Predictors of Intimate Partner Homicide in a Sample of Portuguese Male Domestic Offenders.

Intimate partner homicide (IPH) is a major social problem, and it is important to determine the predictors of this violent behavior. The purpose of this study was to examine the differences between intimate partner violence (IPV) and IPH and to identify the variables that predict IPH. The sample was composed of 35 perpetrators of IPH, who were compared with 137 perpetrators of IPV. The data were collected using the Spousal Abuse Risk Assessment. The data suggest that IPH presents different dynamics from IPV. Being older, exhibiting suicidal and/or homicidal ideation/intent, and the use of weapons and/or credible threats of death substantially increase a man's risk of committing IPH. Inversely, not being single, violating conditional release, and being victimized in childhood decrease the likelihood of committing IPH. These findings reinforce the assumption that IPV and IPH have both commonalities and differences and challenge the view that IPV and IPH are different phenomena and that intimate partner murder is an inexplicable event. Implications for preventing IPV and IPH are discussed.

Severe and Less Severe Intimate Partner Violence: From Characterization to Prediction.

Intimate partner homicide/attempted homicide are the most serious outcome of intimate partner violence. Thus, in this study, conducted in Portugal, we sought to compare perpetrators of severe violence with those who perpetrate less severe acts of violence as well as to identify predictors for severe violence. Sample was constituted by 50 men convicted for marital homicide or attempted homicide and 137 men convicted for domestic violence. Results show that although both perpetrators of severe and less severe violence share some characteristics, significant differences were found among them. The use of weapons, separation/break-up, and high socioeconomic status (SES) significantly increased the likelihood of a man to commit severe violence. Prior violence, aggression, and medium SES decreased significantly the probability of an individual to perpetrate severe violence. These findings reinforce the assumption that severe and less severe forms of violence can be discrete phenomena and underscore the importance of conducting accurate risk assessments.