This is the 2013 edition of an annual report prepared by the Violence Policy Center detailing the reality of homicides committed against females by single male offenders. The study analyzes the most recent Supplementary Homicide Report (SHR) data submitted to the FederalBureau of Investigation (FBI). The information used for this report is for the year 2011. Once again, this is the most recent data available. This is the first analysis of the 2011 data on female homicide victims to offer breakdowns of cases in the 10 states with the highest female victim/male offender homicide rates, and the first to rank the states by the rate of female homicides.