Nice scenario. Generally anyone who shows up anywhere with a firearm gets shot pretty quick by the armed offenders squad. If you're talking about Jan Molenaar, I'm pretty certain that if he hadn't had any firearms then he would still have done a similar amount of damage with a knife.
The scenario you outlined, even in the US, is an isolated situation. If someone wanted to they could gas a classroom full of people with chlorine gas, barricade people in and set fire to a building, make themselves a pipebomb from fertilizer and set it off in a crowd.
Personally I prefer the idea of some guy wandering around with a firearm, that at least you can see coming and he has to be there to be taken care of.
Either way, I don't think either of us is going to convince the other and we are getting away from the thread topic so I'm going to leave this here.
To everyone else, I am serious about my invitation to come and see for yourselves what firearms owners in NZ are really like (a lot of fathers, often shooting with their families)...
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