On 22 July 2011 Anders Behring Breivik killed 77 of his fellow Norwegians in a terrorist atrocity that shocked the world. One of Us is the definitive account of the massacres and the subsequent trial. But more than that, it is the compelling story of Anders Breivik and a select group of his victims. As we follow the path to their inevitable collision, it becomes clear just what was lost in that one day.