The current study investigates the question of the specificity of sexual homicide offenders by comparing three types of crimes: sexual homicide, nonsexual homicide, and violent sexual assault. The comparison is based on victim, offender and modus operandi characteristics throughout 102 variables. The sample has been taken from a French national police database including 1,736 cases. Among these ... [Show full abstract] cases, there are 463 nonsexual homicides, 173 sexual homicides and 1,100 violent sexual assaults. Bivariate and multivariate analyses are performed to highlight the differences. Major differences are observed between, on one hand, sexual homicides and, on the other hand, nonsexual homicides and violent sexual assaults. These differences focus mainly on the offender and modus operandi characteristics. By analyzing specifically the type of observed differences, this research suggests that the sexual murderer and his crime should be analyzed through the lens of a unique type of crime. Findings present implications in terms of correctional practices, offender treatment, and rehabilitation.