Details have begun to emerge in Norway of some of the 76 victims who were killed during a shooting spree on the island of Utoeya and the bombing in Oslo.
The youngest victim is believed to be Johannes Buo, a 14-year-old from southern Norway who has not been seen since the shooting.
Prosecutors are considering charging Anders Behring Breivik, who has admitted carrying out Friday's attacks, with crimes against humanity.
Mr Breivik's defence lawyer, Geir Lippstead, has said his client is probably insane.
The attacks by Anders Behring Breivik traumatised normally peaceful Norway, which has been struggling to come to terms with its worst peace-time massacre of modern times.
'This whole case indicated that he is insane,' Mr Lippestad said of the 32-year-old, who has confessed to 'atrocious but necessary' actions, but denies he is a criminal.
The lawyer said it was too early to say if Mr Breivik would plead insanity at his trial, adding that his client might oppose this as he felt that only he 'understands the truth'.
Mr Lippestad said Mr Breivik had stated he belonged to an anti-Islam network that has two cells in Norway and more abroad.
However, police believe Mr Breivik probably acted alone in staging his bloody assaults, which have united Norwegians in revulsion.
'He hates all Western ideas and the values of democracy ... he expects that this is the start of a war that will last 60 years. He looks upon himself as a warrior. He starts this war and takes some kind of pride in that,' Mr Lippestad said.
Mr Lippestad, a member of the Labour party whose youth wing was the target of shooting rampage on an idyllic island, said he would quit if Mr Breivik did not agree to psychological tests.
'He has a view of reality that none of the rest of us share,' said Mr Lippestad.
Response
Justice Minister Knut Storberget deflected criticism that police had reacted too slowly to the shooting massacre, hailing as 'fantastic' their work after the attacks.
'It is very important that we have an open and critical approach...but there is a time for everything,' Minister Storberget told reporters after talks with Oslo's police chief.
An armed SWAT team took more than an hour to reach Utoeya island, where Mr Breivik was coolly shooting terrified youngsters.
Many Norwegians seem to agree the police do not deserve criticism for their response.
At a march of more than 100,000 in Oslo last night, people applauded rescue workers. The streets were full of red and white roses left after the rally, Norway's biggest since World War Two.
The minister also denied police had ignored threats posed by right-wing zealots in Norway, saying: 'I reject suggestions that we have not had the far-right under the microscope.'
Mr Storberget told Reuters television that Norway had received a 'hard lesson' but would remain an open and free democracy, even as it made unspecified changes to improve security.
There would be, he said, 'more openness, more political activity, a better democracy, more safety for the people, but we have to come back to the concrete measures for that'.
The attacks have triggered calls for Norway to reinstate the death penalty. The maximum prison sentence in Norway is 21 years.
Cache of explosives detonated
Norwegian police have said they had found and detonated a cache of explosives at a farm rented by Mr Breivik.
They refused, however, to disclose the quantity or nature of the explosives.
'Explosives were found on the farm,' outside Olso rented by Mr Breivik, a police spokeswoman said.
'We thought it better not to move them and they were destroyed on the spot in a controlled explosion,' she said.
Taoiseach signs book of condolence
Taoiseach Enda Kenny has formally expressed the sympathies of the Irish people to the people of Norway.
Mr Kenny signed a book of condolence which was opened at the Norwegian Embassy in Dublin.
Tánaiste and Minister for Foreign Affairs Eamon Gilmore also signed the book and met with Norway's Deputy Head of Mission to Ireland.
Around 200 people queued to sign the books of condolence, which were opened to the public for a limited time over the past two days.
