The thread is probably derailed already, but I'll pitch in anyway to shed some light on the Swedish gun control and crimes related to it.
To get a handgun license in Sweden, you'd first have to prove that you can shoot and handle the gun. Minimum requirement for 9mm gun or equivalent is 6+ months membership in an "shooting club", with a license and prior use of a 22 caliber gun (before that air rifles most likely). You basically have to prove that you intend to use the gun for sport shooting. Of course you have to have a clean record as well. I would, for example, not be able to own a gun, despite having fired thousands of bullets with an 9mm gun and used it for many months on tour (tho I'd probably have an easier time getting a license if I were to apply).
Getting a hunting permit (and a rifle) is much easier, but still a similar process; training, some tests (shooting and writting). If you intend to purchase one you have to own a weapon safe with the appropriate safety grade (goes for all guns).
Very few gun related crimes happen with licensed guns in Sweden. The vast majority of gun related crimes comes from illegal guns, usually from the eastern states (Russia, Balkans etc).
Organized crime, if you will.
TL;DR
So while we have a relatively high rate of gun related accidents in Sweden, it in itself has nothing to do with the amount of LEGAL guns in the country.
