( CNN ) -- There is no reason to believe that Norway mass murder suspect Anders Behring Breivik is insane , District Court Judge Torkjel Nesheim said Monday . There is also no evidence he had accomplices in the bomb and gun rampage in which he is accused of killing 77 people this summer , the judge said . The judge ordered him held in custody for a further 12 weeks , with visits and correspondence controlled by the authorities for the first eight , and a ban on media for the first four . More than 500 people packed into a court in Oslo , Norway , to see the suspect 's first public appearance , said Irene Ramm , head of press for the Oslo court . A woman whose daughter was killed in the massacre said she could not understand `` how a human being could do something like that . '' `` That 's why I had to be here today . I do n't understand , so I had to see , had to be here , '' said the woman , who was identified only as `` Carina '' on Norway 's TV2 . `` He looked cold , completely cold , '' she said . He was not allowed to deliver a speech he had prepared , the station reported . Breivik said he did not recognize the authority of the court on the grounds that he opposes the multi-cultural society it is part of , TV2 said . He was stopped on several occasions when he started referring to himself as Commander of the Knights Templar , a title he used in his 1,500-page manifesto , the station reported . `` I interrupted Breivik during today 's hearing because I only wanted to hear him about matters relating to today 's hearing , '' Judge Nesheim said . `` This was not the main trial where he gets to explain himself . I did not want to give him the opportunity to use this hearing as a platform for him to express his views . '' Until now , the proceedings for Breivik have been held behind closed doors . The hearing was to determine whether to keep Breivik in jail until his trial in the spring . Prosecutors expect it to begin in March or April , the judge said . Survivors return to scene of island rampage . He is accused of killing dozens of people in a bomb attack in Oslo followed by a shooting rampage on nearby Utoya island . Eight people were killed in a bombing in Oslo ; 69 young people were killed on Utoya island , in the deadliest attack in Norway since World War II . The young people were attending a Labour Party youth camp . Most of the 700 campers ranged in age from 16-22 , with some as young as 13 . Breivik has pleaded not guilty but admits carrying out the attacks , the judge said . `` The accused is still suspected on probable cause of criminal acts , as described in the charges . He has admitted the bombing in central Oslo and also the shooting on Utoya . The investigation has also confirmed this , '' Nesheim said . He is described by authorities as a right-wing Christian extremist . The 1,500-page manifesto attributed to Breivik was posted on the Internet and is critical of Muslim immigration and European liberalism .
NEW : The judge cut him off because this was not the time to justify his actions , he says . Anders Behring Breivik is ordered held in custody for another 12 weeks . There is no reason to doubt his sanity , the judge says . He is charged in the July 22 attacks that killed 77 people .