What u are obviously forgetting is that on page2 someone already mentioned this happens in Europe too, that nobody said gunlaws make ppl crazy and that in most poor countries the crime rates are far higher than in our rich countries.
About the only thing u can do about it, is taking guns as far away as possible from these moshlosers. Like u already discovered, schoolshootings and shootings in general happen less frequently in Europe than in the US.