We have charged and convicted persons for committing War Crimes. The crimes were in Rwanda - The trial was in canada - and not the Hague.
Now this pedo posted sex crimes online- if downloaded in Canada he is then guilty as far as I know. And the only way of convicting and lessening this evil is with laws such as we have.
We are becoming more and more a global community.
I would guess if you do something illegal on the internet, it's illegal world wide and probably Mars and Venus as well!