The perpetrator wished to change society through violence against our legally elected government. He wanted to establish a racist and authoritarian society, and dispose of democracy as we know it.
The biggest difference between him and the other biggest fuckwad in Norwegian history is that his hate-on was for muslims instead of jews.
Because it's old hat in those countries. This is Norway, a small, wealthy, semi-isolated country that hasn't seen any war or other large scale acts of violence since WWII.
People playing contrarian don't seem to realize that this WAS about the middle east, Africa, Mexico etc. It's been a while since anyone has used mass murder to protest a country's acceptance of Norwegian refugees.