Argument: Reducing the prevalence of guns reduces crime
- The Columbine High School massacre in the U.S.A. in 1999 is an example of two high school students illegally purchasing two 9 mm firearms and two 12-gauge shotguns on the black market, and using them to kill 12 Columbine High School students.
- Atlanta Public Safety Commissioner A. Reginald Eaves told a congressional committee in 1976 that "three out of four deaths [over the course of that year] could have been prevented, were a handgun not available."
- Boston Police Commissioner Robert diGrazia said in 1976 that "the unavailability of handguns would lead to the noncommission of many crimes."
- ..."An FBI report, Crime It) the United States, 1973, reveals that a firearm kept in the home for self-defense is six times more likely to be used in a deliberate or accidental homicide involving a relative or a friend than against a burglar or unlawful intruder."