People describe him as a 'loner' and 'odd'. Never heard that before, but it's not a crime to be either. Did this jackass have a criminal record? If not, why the push on gun owners to just give up their rights to self-defense? This Minority Report concept that someone going nuts can always be prevented is lunacy.

In a country of 320 million people, this crap will happen, although this issue is not uniquely American.

There are 2 legged predators in this world. Defend yourselves.

...and criminals don't obey laws. The concept of a 'gun free zone' only works in fantasy land.