I wasnt being sarcastic suicide has a lot offactors involved. Though several studies have shown that making barriers to suicide prevents them from occuring (this is usuallyin the context of barriers on bridges/ buidlings).
I dont mean dont care about, just that they are not my number one concern. Those are deeper problems often involving cultures with no way out. As you have mentined in the past the guns involved in these incidents are generally illegal and all the background checks in the world wouldnt help.
However your research proves my case a resounding 70-50% of homicides in the US are NOT gang related! In other words with the right regulation these are the ones we can prevent (again, granted not all of them). That is a lot of homicide even the lower edge of that range is still a higher rate of homicide than any of the countries you have brought up in the course of this conversation (France, England, Norway, and Spain) I would love to emulate their homicide rates.
Japan btw has a much much much more violent TV/movie culture. and a much lower homicide rate.