I have been to events like the one on Utøya. Several such events. Not the exact one, but change political denomination, move a country south, and go back 15 years. Details, in other words, that the crackpot-du-jour randomly decided. For all practical purposes I could have been there.
Let the wheels of the justice system grind. Followed, one hopes, by a long, very lonely stay in a gray cell with easy access to newspapers documenting him fading into a position next to Quisling in public memory.