Here in Taiwan, recently my bother inlaw's co worker was shot and killed by someone trying to rob the bank that they worked in,
who later killed himself or so they say

My brother in law was there almost at the same place
when it happened luckily he was able to find some cover..
Kind of surprising considering its not easy as I understand it to own a gun here,,,,could be wrong.
Regarding laws...
https://www.youtube.com/watch?v=wAXxQBIfH7I
The clip brings out the point that although people say they want something done,
they don't vote for it to be done. It also addresses some of the differences in the US vs other countries.
In this case the system failed, FBI and other checks that were reported about this guy weren't followed up, they didn't follow their own protocols
as reported in the news ....With him, if it wasn't a gun it would have been something else...