Gun availability is strongly correlated with female homicide rates in high-income countries, as women are more at risk of being killed by intimate partners or family with access to a firearm in the home. While violent crime has decreased in the US in the last 20 years, the decline in firearm homicide rates has slowed since 2000, suggesting that firearm homicides are prevalent not only in criminal activities but also in other contexts. More detailed statistical data is needed to better understand patterns between homicide mechanisms and typologies in different regions.