Interestingly, there's over a million firearms licenses here in Australia, including my own, and most of those licenses have multiple firearms of many different varieties on it including my own and, like you say, gun violence of this nature is almost unheard of...and then there's religion and the way it makes people want to kill each other simply for not being the same religion. Wankers, the lot of them. All the while, millions of guns are used by hundreds of thousands of Australians and there seems to be little to no issues comparatively speaking. You probably have multiple guns/licensed firearm owners on your street and don't even know it.