Breivik is innocent. He's the product of a negligent society that subscribes to cultural Marxism, and expects people to congregate without guaranteeing social assimilation or familiarity.
That said, I pity how he blamed Muslims for his problems. If anything, Muslims are on his side in advocating conservative lifestyles, and Norway endorses Palestine anyway.
The politics of the case are rather astonishing, and they show how far postmodernist decadence has decayed Western society.