One of Us: The Story of Anders Breivik and the Massacre in Norway by Ǻsne Seierstad:
She could feel nothing, no grief, no fear. Simon is dead, and soon we all will be, she thought. The people who were shooting, would come back and kill them all. The shots were so regular, so loud. Margrethe had lost her will to live; she did not bother to sit out of sight, she had given up. She had gone numb, up there on the rock ledge. Her phone kept lighting up. Dad, said the display, but she did not take his call.
It was over. This was the end.