Anders Behring Breivik arrives for his appeal case in Borgarting Court of Appeal at Telemark prison in Skien, Norway, Tuesday, Jan. 10, 2017. Norwegian mass murderer Anders Behring Breivik walked quietly into a courtroom at a high security prison Tuesday, making a neo-Nazi salute, as judges began reviewing a government appeal against a ruling that his solitary confinement was inhumane and violated human rights.