A Harvard study attempts to answer the question of whether or not banning firearms would reduce murders and suicides. Researchers looked at crime data from several European countries and found that countries with HIGHER gun ownership often had LOWER murder rates.
The study found no evidence to suggest that the availability of guns contributes to higher murder rates anywhere in the world. "Of course, it may be speculated that murder rates around the world would be higher if guns were more available. But there is simply no evidence to support this.”
Further, the report cited, “the determinants of murder and suicide are basic social, economic, and cultural factors, not the prevalence of some form of deadly mechanism.” Meaning, it’s not guns that kill people.