I really don't know which is more funny, the fact that you're linking an article that disputes your entire theory on guns, or the fact that you are trying to skew a statement within the article grossly and take it out of context completely.
For those that haven't bothered with the link made by Rollo, give it a click. The article is entitled "Disarming Realities: As Gun Sales Soar, Gun Crimes Plummet" and it appears he read only enough of it to try to twist a statement made in the article, discarding the rest of it.
And I make no claim to know more about gun ownership statistics than the DOJ, but the FBI has huge online databases. Anyone who goes so far as to read the above article would find that a great deal of murders with guns takes place with the gang bangers too young to own one regardless of state.
But lets not let facts from the article get in the way when we can speculate and make things up.