Norway's Crown Prince Haakon, right, and his wife Mette-Marit leave the church after a memorial service in Norderhov, Norway, Sunday, July 24, 2011. A Norwegian dressed as a police officer gunned down at least 84 people at an island youth retreat before being arrested, police said Saturday. Investigators are still searching the surrounding waters, where people fled the attack, which followed an explosion in nearby Oslo that killed seven. (AP Photo/Frank Augstein)

People affected by the tragedy mourn during a memorial service in Norderhov, Norway, Sunday, July 24, 2011. A Norwegian man dressed as a police officer gunned down at least 84 people at an island youth retreat on Friday before being arrested. Investigators are still searching the surrounding waters, where people fled the attack. The same man is believed to have been responsible for an explosion in nearby Oslo that killed seven. (AP Photo/Frank Augstein)

People affected by the tragedy light candles during a memorial service in Norderhov, Norway, Sunday, July 24, 2011. A Norwegian man dressed as a police officer gunned down at least 84 people at an island youth retreat on Friday before being arrested. Investigators are still searching the surrounding waters, where people fled the attack. The same man is believed to have been responsible for an explosion in nearby Oslo that killed seven. (AP Photo/Frank Augstein)

Norway's Crown Prince Haakon, right, and his wife Mette-Marit arrive at the church for a memorial service in Norderhov, Norway, Sunday, July 24, 2011. A Norwegian dressed as a police officer gunned down at least 84 people at an island youth retreat on Friday before being arrested Investigators are still searching the surrounding waters, where people fled the attack, which followed an explosion in nearby Oslo that killed seven. (AP Photo/Frank Augstein)

From left Norwegian King Harald, Bishop Ole Christian Kvarme, Queen Sonja, Bishop Helga Byfuglien and Princess Martha Louise after a "mass for sorrow and hope" in Oslo Cathedral Sunday July 24, 2011 . On Friday, a bomb rocked central Oslo, killing seven people. Hours later, a gunman opened fire on a nearby island that was hosting a retreat for members of the left- leaning Labor Party's youth wing. At least 85 people died there. (AP Photo/ Hakon Mosvold Larsen / Scanpix ) NORWAY OUT

People affected by the tragedy mourn during a memorial service in Norderhov, Norway, Sunday, July 24, 2011. The nation paused Sunday to mourn and reflect on recent tragedies perpetrated Friday by a Norwegian man who gunned down people at an island youth retreat and set off a large explosion in Oslo city centre, killing at least 92 people and wounding another 97, before being arrested. (AP Photo/Frank Augstein)

Norway's Crown Prince Haakon, right, and his wife Mette-Marit leave the church after a memorial service in Norderhov, Norway, Sunday, July 24, 2011. A Norwegian dressed as a police officer gunned down at least 84 people at an island youth retreat before being arrested, police said Saturday. Investigators are still searching the surrounding waters, where people fled the attack, which followed an explosion in nearby Oslo that killed seven. (AP Photo/Frank Augstein)

A woman wipes her face during a gathering on July 24, 2011 in Oslo to pay tribute to the victims of a bomb explosion which ripped through government buildings and the shooting spree at the youth camp of the Norwegian Labour Party, two days ago. The suspect in Norway's twin attacks that killed at least 92 and wounded 97 says he acted alone, police said, in a "cruel" but "necessary" slaughter planned over many months. As Norway's king and prime minister joined mourners in the cathedral, police said they are still trying to establish whether there was "one or several" shooters in the attack on Utoeya island, northwest of Oslo. AFP PHOTO / ODD ANDERSEN

A young boy carry roses during a gathering on July 24, 2011 in Oslo to pay tribute to the victims of a bomb explosion which ripped through government buildings and the shooting spree at the youth camp of the Norwegian Labour Party, two days ago. The suspect in Norway's twin attacks that killed at least 92 and wounded 97 says he acted alone, police said, in a "cruel" but "necessary" slaughter planned over many months. As Norway's king and prime minister joined mourners in the cathedral, police said they are still trying to establish whether there was "one or several" shooters in the attack on Utoeya island, northwest of Oslo. AFP PHOTO / ODD ANDERSEN

Two young woman mourn during a gathering on July 24, 2011 in Oslo to pay tribute to the victims of a bomb explosion which ripped through government buildings and the shooting spree at the youth camp of the Norwegian Labour Party, two days ago. The suspect in Norway's twin attacks that killed at least 92 and wounded 97 says he acted alone, police said, in a "cruel" but "necessary" slaughter planned over many months. As Norway's king and prime minister joined mourners in the cathedral, police said they are still trying to establish whether there was "one or several" shooters in the attack on Utoeya island, northwest of Oslo. AFP PHOTO / ODD ANDERSEN

A young girl watch her mother placing a candle during a gathering on July 24, 2011 in Oslo to pay tribute to the victims of a bomb explosion which ripped through government buildings and the shooting spree at the youth camp of the Norwegian Labour Party, two days ago. The suspect in Norway's twin attacks that killed at least 92 and wounded 97 says he acted alone, police said, in a "cruel" but "necessary" slaughter planned over many months. As Norway's king and prime minister joined mourners in the cathedral, police said they are still trying to establish whether there was "one or several" shooters in the attack on Utoeya island, northwest of Oslo. AFP PHOTO / ODD ANDERSEN

A Norwegian flag stands in a bunch of flowers during a gathering on July 24, 2011 in Oslo to pay tribute to the victims of a bomb explosion which ripped through government buildings and the shooting spree at the youth camp of the Norwegian Labour Party, two days ago. The suspect in Norway's twin attacks that killed at least 92 and wounded 97 says he acted alone, police said, in a "cruel" but "necessary" slaughter planned over many months. As Norway's king and prime minister joined mourners in the cathedral, police said they are still trying to establish whether there was "one or several" shooters in the attack on Utoeya island, northwest of Oslo. AFP PHOTO / ODD ANDERSEN

People crowd on July 24, 2011 in Oslo around a flower tribute to the victims of a bomb explosion which ripped through government buildings and the shooting spree at the youth camp of the Norwegian Labour Party, two days ago. The suspect in Norway's twin attacks that killed at least 92 and wounded 97 says he acted alone, police said, in a "cruel" but "necessary" slaughter planned over many months. As Norway's king and prime minister joined mourners in the cathedral, police said they are still trying to establish whether there was "one or several" shooters in the attack on Utoeya island, northwest of Oslo. AFP PHOTO / ODD ANDERSEN

Swedish Crown Princess Victoria arrives at the Norwegian church in Stockholm on July 24, 2011 to a memorial service for the victims of a bomb explosion which ripped through government buildings in Oslo and the shooting spree at the youth camp of the Norwegian Labour Party, two days ago. The suspect in Norway's twin attacks that killed at least 92 and wounded 97 says he acted alone, police said, in a "cruel" but "necessary" slaughter planned over many months. As Norway's king and prime minister joined mourners in the cathedral, police said they are still trying to establish whether there was "one or several" shooters in the attack on Utoeya island, northwest of Oslo. AFP PHOTO / SCANPIX / FREDRIK PERSSON SWEDEN OUT

Norway's Queen Sonja (2nd,L) hugs Norwegian Prime Minister Jens Stoltenberg (L) while Princess Martha (R) hugs the leader of the Labour Party youth wing and survivor of the attack Eskild Pedersen (2nd, R) during a mass for victims of the government office bombing and youth camp massacre at the Domkirken Church in Oslo on July 24, 2011. At least 94 were killed in Friday's attacks in Norway, a bombing in central Oslo and a series of shootings on an island just outside the capital, and the figure could rise, a senior police officer said. Police had also found explosives on the island of Utoeya, where a gunman opened fire on young people at a summer camp organised by the ruling Labour Party, Sveinung Sponheim, acting commissioner for Oslo police, told reporters. AFP PHOTO / ODD ANDERSEN

Grieving members of the public embrace after a "mass for sorrow and hope" at Oslo's Cathedral on July 24, 2011. An emotional Prime Minister Jens Stoltenberg told hundreds of mourners at a memorial mass in Oslo Cathedral on Sunday that the scale of the evil of the attacks in Norway was yet to emerge. Stoltenberg said that the names and photographs of those who died, including many members of the youth wing of his Labour Party, would soon be released and "the scale of the evil will then emerge." Stoltenberg addressed a memorial mass for the 92 known victims of Friday's twin bomb and gun attacks, attended by King Harald V, Queen Sonja and other Norwegian dignitaries. AFP PHOTO / SCANPIX NORWAY - Hakon Mosvold Larsen = NORWAY OUT

Norway's King Harald (L) and Queen Sonja (2nd,R) bid farewell to the clergy after a mass for victims of the government office bombing and youth camp massacre at the Domkirken Church in Oslo on July 24, 2011. At least 93 were killed in Friday's attacks in Norway, a bombing in central Oslo and a series of shootings on an island just outside the capital, and the figure could rise, a senior police officer said. Police had also found explosives on the island of Utoeya, where a gunman opened fire on young people at a summer camp organised by the ruling Labour Party, Sveinung Sponheim, acting commissioner for Oslo police, told reporters. AFP PHOTO / ODD ANDERSEN

Norway's Crown Prince Haakon places a candle during a memorial service in Norderhov, Norway, Sunday, July 24, 2011. The nation paused Sunday to mourn and reflect on recent tragedies perpetrated Friday by a Norwegian man who gunned down people at an island youth retreat and set off a large explosion in Oslo city centre, killing at least 92 people and wounding another 97, before being arrested. (AP Photo/Frank Augstein)

People gather after a "mass for sorrow and hope" in Oslo Cathedral Sunday July 24, 2011. At least seven people were killed in Friday in a bomb attack on the government quarter in Oslo. Soon afterwards, 85 people were shot dead as gunman ran amok on the nearby island of Utoya. Norway's King Harald V and his wife Queen Sonja and Prime Minister Jens Stoltenberg joined mourners on Sunday at Oslo Cathedral, where the pews were packed, and the crowd spilled into the plaza outside the building. The area was strewn with flowers and candles, and people who could not fit in the grand church huddled under umbrellas in a drizzle.(AP Photo/ Aleksander Anderen, Scanpix) NORWAY OUT

Norwegian Princess Martha Louise, centre, and her husband Ari Behn pictured after a "mass for sorrow and hope" in Oslo Cathedral Sunday July 24, 2011. At least seven people were killed in Friday in a bomb attack on the government quarter in Oslo. Soon afterwards, 85 people were shot dead as gunman ran amok on the nearby island of Utoya. (AP Photo, Aleksander Anderen, Scanpix) NORWAY OUT