This issue of the NIJ Journal focuses on a single important topic -- homicides committed by the victimÍs spouse or other intimate partner. Women are most likely to be the victim in these cases of intimate partner homicide. An overview on page 2 reflects the range of ideas the authors discuss, from aspects of the problem (such as risk factors and the effect of alcohol abuse) to possible steps toward reducing the number of incidents (such as the effectiveness of domestic violence services and the use of fatality reviews). The articles shed new light on a type of crime that continues to have serious social consequences and to present challenges to law enforcement and health providers.