A new report examines data from more than 1,400 studies of programs such as broken windows policing, gun buybacks, therapy, and other attempts to curtail death and violence in American cities.
The numbers remain small, compared to other types of gun fatalities, but such deaths are especially tragic and, according to research, easily preventable.
If you control for developing countries and South Africa, with its history of apartheid and ethnic conflict, there is a strong link between the number of guns per capita and gun-related homicides in a country.