Try Googling "Shootings in Finland 2012" and read the results.
Are the Finns naturally violent individuals?
Do the Finns not have enough space?
Try, instead, reading about the gunman's profile: a loner with a dysfunctional family. Try reading Albs excellent link on the dispensing of psychotic drugs, especially to young people.
IMHO, not enough is done to identify and treat correctly mental instability and personality disorder in today's youth (albeit a tiny minority).
This:
http://en.wikipedia.org/wiki/List_of_countries_by_intentional_homicide_ratestates that overall, Finland has a murder rate of 2.2 / 100,000 people which is *much* lower than most of the US, and on a par with the rest of Europe (including the UK).
Finland has a gun-ownership rate of somewhere between 32 and 55 guns per 100 people - according to
http://en.wikipedia.org/wiki/Gun_politics_in_FinlandCompare Switzerland, with a murder rate of 0.7 per 100,000 (half the UK's) where there are, according to:
http://en.wikipedia.org/wiki/Gun_politics_in_SwitzerlandSwitzerland has a gun ownership rate of 45.7 guns / 100 people - most of which are military issue Sig 550 rifles!
This is a good site:
http://en.wikipedia.org/wiki/Gun_ownership_ratewhich lists the UK as 88th in ranking for gun ownership (at 6.2 guns/100 population)
I'm going to run an analysis on the figures, but at first glance, I would say there is little to no correlation between gun ownership and murder rates - obviously there is a correlation between gun-murder and gun ownership, but at first glance, I would say that would-be murderers are able to kill their victims regardless of access to firearms - and this MUST be considered against the potential victim's access to firearms.
As to this particular case
Any country/government or individual who allows a mentally unstable (I'll say that to be charitable) person access to firearms, or knives, or hammers,or cars should be held just as liable for whatever ensues.
I would say that it's not guns which need to be controlled, it's probably merkians...