In China, where citizens are generally not allowed to own firearms because of very strict gun control laws, mass murder is still accomplished.
A group of knife-wielding crazies took out 27 people and injured over 100 at a train station. Not a single gun was used yet 27 were killed.
Reports show that the stabbers were shot by police.
If this happened in my city, I would only hope that someone was carrying a firearm to take these violent knife-wielders out.