A translated transcript of the Norwegian killers motives as said by his lawyer can be found here and on the BBC wesbite here.
It's a sad state of affairs that any human being can be consumed with so much hatred that he is willing to orchestrate and carry out the murder of nearly 100 innocent people - his own people.
This of course is in a country with a relatively small population. I gather that the death toll accounts for 1 in 5000 of the Norwegian populace. To put that into context, I think that would be he equivalent of some 1,200 British people being targetted in this way which doesn't bare thinking about.
It's a sad world that makes people resort to such desperate and devastating measures.