As I stated earlier in this thread, I agree with [MENTION=578]franklin[/MENTION]. Guns are not the root of gun related deaths.
As to your question here, I honestly don't know. What is it about our society that is the trigger that isn't prevalent in other countries/societies?
It is prevalent in other societies. Just not all other societies. For example Honduras is very violent while Switzerland is not.
Not I am sure there are many factors that come into play here that add or detract from the nature to do violence in a society.