Look at the Harvard social scientist David Hemenway’s work on gun violence to see how simple it is; the phrase “more guns = more homicide” tolls through it like a grim bell. The more guns there are in a country, the more gun murders and massacres of children there will be. Even within this gun-crazy country, states with strong gun laws have fewer gun murders (and suicides and accidental killings) than states without them. (Hemenway is also the scientist who has shown that the inflated figure of guns used in self-defense every year, running even to a million or two million, is a pure fantasy, even though it’s still cited by pro-gun enthusiasts. Those hundreds of thousands intruders shot by gun owners left no records in emergency wards or morgues; indeed, left no evidentiary trace behind. This is because they did not exist.) Hemenway has discovered, as he explained in this interview with Harvard Magazine, that what is usually presented as a case of self-defense with guns is, in the real world, almost invariably a story about an escalating quarrel. “How often might you appropriately use a gun in self-defense?” Hemenway asks rhetorically. “Answer: zero to once in a lifetime. How about inappropriately—because you were tired, afraid, or drunk in a confrontational situation? There are lots and lots of chances.”

Note that Fantasy line in there – http://www.newyorker.com/news/daily-comment/the-simple-truth-about-gun-control