Our aim with this Special Issue is to begin to fill an important empirical and academic gap in European criminological research: Homicide research in Europe. Relative to the United States and several commonwealth countries, Europe does not have a long tradition of studying the trends, patterns and explanations of homicide. Differences in legal definitions of and data sources on homicide have hampered cross-national comparisons. Further, population-level studies of homicide have long been at the periphery of criminological research, and this is especially true of European criminological scholarship. In light of these challenges, a small number of important recent initiatives have begun to systematically address homicide and homicide research in Europe. First, the construction of the European Homicide Monitor (EHM) is enabling comparisons and analyses among European countries. So far, three countries constitute the basis of the database: Finland, the Netherlands and Sweden (Ganpat et al., 2011; Liem et al., 2013). Other European countries are now in the process of joining this exciting initiative, filling a long-existing lacuna. A homicide measurement project such as this is fundamental for further research that will provide evidence-based knowledge on topics such as the social factors that foster lethal violence, effective violence prevention, and setting rational punishment, sentencing policy and treatment of offenders. Second, the publication of our Handbook of European Homicide Research: Patterns, Explanations, and Country Studies (Liem and Pridemore, 2011) provided the first large-scale systematic collection of information on homicide research in Europe and serves as a foundation for research on the topic moving forward. Third, the increased activity of the European Homicide Research Group reveals an additional indication of the growing interest in this field. We hope this Special Issue of the European Journal of Criminology represents yet another cornerstone to the growing field of European homicide research, and we thank the Journal’s editor, Paul Knepper, and others at the European Journal of Criminology for their support. For this Special Issue, we sought to gather work concerned with various aspects of homicide and other serious violence to highlight these recent developments and the diversity of this research area. The articles here range from theory-based contributions, to empirical work making use of macro-level or national data, to data related to specific types of homicide. 540077 EUC0010.1177/1477370814540077European Journal of CriminologyEditorial research-article2014