The problem with gun crime is there is no answer. 97.5% of statistics are made up on the spot or twisted in such a way to make the individual using them appear to be right.

People kill people. Fact. Guns make it easier to kill people. Fact. There is too many factors to use statistics to prove much. Some statistics say guns make us safer, some to say guns increase the risk of accidental death or misuse (it's easy to pull a trigger). I don't have the answers and I don't pretend to.
It's much more of a societal problem stemming from social problems. The question is not whether if death would had occured had a gun not been there. The question is why it occurred in the first place. Poverty leads to higher crime rates. We can't deny that. Unfortunately I tend not to side with socialists because I don't believe in the principle of forcefully taking portions of everyone's salary and using it to fund these so called "social programs".

Switzerland are fairly socialist. They have astronimically low gun crime. My best guess is to wager that people are generally happier and have no reason to go hold up the local 7-11.

It's an incredibly complex issue. It's far too complex to measure through mere statistics.