"It's going to be 10 weeks of hell ... to hear this man, to hear his explanation of why he did it and how he did it, " said Trond Henry Blattmann, whose son was killed on Utoya Island.
Crown Princess Mette-Marit, for instance, moved freely among mourners at a gathering in the home town of her step-brother, Trond Berntsen, who was on guard at the Labour Party youth camp on Utoya island and one of the first to be killed.