Anders Behring Breivik

Anders Behring Breivik is the perpetrator of the 2011 Norway terror attacks. In a sequential bombing and mass shooting on 22 July 2011, he bombed government buildings in Oslo, resulting in eight deaths, then carried out a mass shooting at a camp of the Workers' Youth League of the Labour Party on the island of Utøya, where he killed 69 people, mostly teenagers. He was convicted of mass murder and terrorism in August 2012.

In 2011, Breivikat tracked and gunned down 69 people, most of them teenagers, at a Labour Party youth camp. Photo: EPA

Mass murderer Anders Breivik says prison has radicalised him

Right-wing extremist Anders Behring Breivik, who killed 77 people in 2011, said on Thursday his more than five-year prison isolation has radicalised him, a key point in his lawsuit against the Norwegian state over his prison conditions.