Day Of Horror: Norway Gunman Kills 84 Youths After Previously Setting Off Bomb That Killed 7 [Video]

Injured woman being helped to safety after Oslo bombing

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Oslo, Norway (CNN) -- New details emerged Saturday surrounding the mass shooting and bomb attack in Norway that left 91 people dead, as a fuller picture of the suspect charged in the attacks came to light.

An employee at a Norwegian agricultural cooperative told CNN that the man identified in media reports as the suspect in Friday's attacks bought six tons of fertilizer from her company in May.

Oddmy Estenstad, of Felleskjopet Agr, said she did not think the order was strange at the time because the suspect has a farm, but after the bombing she called police because she knew the material can be used to make bombs.

"We are very shocked that this man was connected to our company," said Estenstad. "We are very sad about what happened."

Norwegian television and newspaper reports have identified the suspect as 32-year-old Anders Behring Breivik.

Anders Behring Breivik

Official sources and social media indicate that Breivik might be a right-wing Christian fundamentalist who may have had an issue with Norway's multi-cultural society.

Police have not officially released the identity of the suspect, telling reporters only that they detained a 32-year-old Norwegian man who is being questioned in both the Oslo bombing -- which left seven dead and more than 90 wounded -- and the shooting attack at the youth camp on Utoya island, in which 84 people were killed.

Emergency workers carry away dead bodies from shooting massacre on Utoya Island

The suspect was cooperating with police, making it clear he wanted to explain himself, Roger Andresen, a deputy police chief, told reporters during a news conference.

Prime Minister Jens Stoltenberg did not rule out the possibility that there was more than one person involved in the attacks, which he called the "worst atrocity" the country had faced since World War II.

"They have so far arrested one person," Stoltenberg told reporters Saturday. "They have not concluded whether there is one or more than one person behind the attacks."

Indeed, a second person was arrested Saturday in a hotel where the prime minister was due to meet families of the victims of the attack, police said. He was carrying a knife, state-run broadcaster NRK reported.

Seven were killed in Friday's explosion in the Norwegian capital, officials said. In all, 90 people were hospitalized as a result of the blast, said Erik Hansen, a spokesman for Oslo Mayor Fabian Stang.

Woman injured in Oslo bombimg

It was while authorities were searching for survivors of the mid-afternoon bombing that a man wearing a police uniform and identifying himself as an officer arrived by boat at Utoya island, about 20 miles from Oslo, where word was spreading among the campers about the explosion in the capital, said Adrian Pracon, a survivor of the mass shooting.

The hundreds of teens and young adults attending the camp were gathered in a large meeting room where camp organizers were sharing information about the bombing in Oslo when the police officer asked if he could address the group, Pracon said.

"We, of course, allowed him to come" in and talk to those assembled, Pracon said.

It was then that the man started shooting.

What followed, Pracon says, was panic and chaos as some campers ran from the shooter, while others went toward the man because they believed it was a drill or a test.

Many who fled ran toward the shore, jumping into the water to try to swim the three-fourths of a mile between the island and the mainland.

Pracon was among those who attempted to swim, but he was forced to turn back.

"I felt I couldn't breathe. I already swallowed too much water. I also jumped because I was the last person running to the shore from this man. So I didn't have time to take my clothes off. As I was swimming, I felt the clothes pulling me down because they were heavy boots, clothes," he said.

Pracon said the shooter chased people to the shore, screaming at them as he fired at them.

Pracon was lying on the shore when the gunman opened fire at those in the water and on the shore.

"I was maybe 5, maybe 7 meters away from him as he was yelling he was 'going to kill you all' and 'we all shall die.' He pointed his gun at me, but he didn't pull the trigger," Pracon said.

"He left and returned maybe an hour later ... he shot almost everyone."

Authorities on Saturday said 84 had died on the island.

An aerial view of Utoya Island where the second attack took place

"Me and two others were laying down and survived because of the bodies we could hang on to and pretend that we are dead," Pracon told CNN early Saturday by telephone from his hospital room.

"I could feel his breath," said 21-year-old Pracon. "I could hear his boots."

When police arrived on the island, many survivors believed they might also be gunmen posing as police.

"Everyone started screaming, crying and begging police officers to throw away their weapons," Pracon said.

An elite police unit took the gunman into custody on the island, Andresen said. The man did not put up a fight during his arrest, he said.

Authorities were searching the waters Saturday around the island, looking for bodies of campers who may have drowned trying to swim to safety, police said.

Massacre: People are seen on the banks of Utoya after the shooting

The suspect matched the description of a person who was seen near the government buildings shortly before the bombs erupted, police said.

The acting national police chief, Sveinung Sponheim, told reporters in Oslo that the gun used to shoot the campers was an automatic weapon and that undetonated explosives were found on the island after the attack.