When reports of the attacks in Norway first broke, many initially concluded that a Muslim group was behind it.
The revelation that they were carried out by a local, Anders Behring Breivik, has forced the country to look inwards and tackle growing anti-immigration sentiment.
Breivik himself dabbled in politics as a member of the right-wing Progress Party. But his vision soon became apocalyptic, far beyond the realm of political discourse.
Jonah Hull reports from Oslo.