Norway gunman Anders Breivik legally insane, prosecutors say

Anders Behring Breivik should be locked up in a mental institution for last summer's massacre that left 77 dead in Norway, prosecutors argued during closing remarks in Oslo today, the AFP reports.

Anders Behring Breivik should be locked up in a mental institution for last summer's massacre that left 77 dead in Norway, prosecutors argued during closing remarks in Oslo today, the AFP reports.

Prosecutors told the five Oslo judges hearing the case that they could not prove beyond a reasonable doubt that Breivik is sane.

During the 10-week trial, Breivik said that the attack, which left mostly children dead, was "preventative" to defend "ethnic Norwegians" and that he would not hesitate to do it again. Under Norwegian law, Breivik faced a maximum of 21 years in jail, which could be extended to life if he is considered a threat to society. If found insane he could be sentenced to a psychiatric facility for life.

According to a Norwegian poll, the AFP reports, three out of four Norwegians want Breivik to go to prison rather than an insane asylum. During the trial, Breivik explained to a packed courtroom how he used Call of Duty to "train" for the shooting spree.

Tomorrow, Breivik's attorneys will summarize the case and Breivik will have up to an hour to address the court.

The judges are expected to rule by next month, determining whether Breivik can be held criminally responsible for the killing spree he confessed to, or whether he will be committed to a psychiatric hospital.