Breivik raised his right arm to make the flat-handed Nazi-style salute as he entered court in a converted gym.
Breivik murdered 77 people in two attacks—a bombing and a mass shooting—in 2011.
The gesture was made in protest of the apparently “inhumane” conditions Breivik was kept in.
Mark Colborne compared himself to Norwegian mass murderer Anders Behring Breivik.
1,000 plus youth arrive on the island where 69 were shot and killed by Anders Behring Breivik.
Jens Breivik, father of the man who killed 77 Norwegians in 2011, speaks about a national and personal trauma