I assumed 5 or 6 seemed a creepily specific number and thus you wanted specifics. Note that as I said this was pure uninformed speculation. Norway is a partcularly well governed country, and overall specific people tend to in well governed Western states to matter much less here than say in Saddam Hussein's Iraq. However even a marginally better job at governing or crafting laws creates averts a lol of dusts specks.

I usually apply pure consequentalism measuring happy healthy years of life as a first estimate. When actually contemplating real actions to support I go by vritue ethics, since some costs are hard to capture in utilitarian thinking. Following virtue ethics I wouldn't ever support an attempt to assassinate someone unless they where directly responsible for a massive amount of death, as in signing death warrants or conducting killings or hiring thugs. Perhaps controversially I wouldn't put torturing people a ok reason to assassinate since that seems really hard to establish because of propaganda, misninformation, a more convoluted paper trail, ect.