THE VICTIMS WERE IMMIGRANTS GATHERED FOR FRIDAY PRAYERS. AMONG THE YOUNGEST WAS A FOUR-YEAR-OLD WHOSE FAMILY WERE SOMALI REFUGEES. ONE GREETED HIS KILLER WITH A WELCOMING ‘HELLO, BROTHER.’

A grandfather who regularly went to the airport to greet refugees, an academic researcher who had spent time in Nova Scotia, and a four-year-old who came from a family of Somali refugees were among the victims identified Friday in a deadly mass shooting at two mosques in Christchurch, New Zealand.

According to a chilling live-stream video that captured part of the attack, a worshipper at the entrance to the Al Noor mosque greeted the approaching gunman with a “Hello, brother,” before the heavily armed attacker unleashed a torrent of bullets.

Forty-one people were killed at that mosque and another seven at the Linwood mosque. One person died at hospital.

The dead, injured or missing hailed from across the Middle East and South Asia, including Pakistan, Indonesia, Turkey, Saudi Arabia, Bangladesh and Malaysia, officials said.

Daoud Nabi was shot and killed when he apparently threw himself in front of another worshipper at the Al Noor mosque, his son, Omar Nabi, told NBC News.

“I’m a bit lost,” he said. “He is a man of lots of knowledge, and I’ve been his student for a long time.”

Omar, a mechanic, told NBC from a local hospital that he ran to the mosque as soon as he heard there had been a shooting. He tried calling his father but the phone kept ringing.

“He’s helped everyone who’s a refugee,” Omar said. “Whether you’re from Palestine, Iraq, Syria — he’s been the first person to hold his hand up.”

The Nabi family immigrated to New Zealand from Afghanistan in the 1980s to flee the Soviet Union’s invasion, Omar told the network. His father, an engineer, founded a mosque and had nine grandchildren.

On Facebook, Omar posted a picture of his father, writing simply: “Please Dad. Come home.”

Four Pakistani nationals were wounded and five others were missing, a foreign ministry spokesman tweeted.

Bangladesh’s honorary consul in Auckland told reporters that three Bangladeshis had perished and at least four others were injured. One person’s leg had to be amputated and another had a gunshot wound to the chest.

One of the dead was identified by multiple Bangladeshi news organizations as Abdus Samad, who was working at Lincoln University in New Zealand.

Nasif Sarowar, a postdoctoral researcher specializing in salmon farming at Dalhousie University, told the Truro Daily News in Nova Scotia that Samad had worked alongside him until about five years ago when Samad and his family moved to New Zealand.

“It’s a loss to the world — he was a scientist,” Sarowar said.

Bangladeshi media outlets identified another victim as Husne Ara Parvin, who apparently was rushing to her wheelchair-bound husband in another part of the Al Noor mosque when she was shot.

One of the youngest victims was a fouryear-old boy, who came from a family of refugees who fled Somalia in the mid-1990s. Abdulrahman Hashi, a Muslim preacher in Minneapolis, told The Washington Post that the boy was his nephew.

He said the boy’s father had been worshipping with his five children when the gunfire erupted. None of the other children was hurt.

“You cannot imagine how I feel,” he was quoted as saying. “He was the youngest in the family.”

Two Jordanians were killed and several more injured, that nation’s foreign affairs ministry said in a statement. Among the injured was Mohammed Elyan, who teaches engineering at a university in New Zealand and co-founded one of the targeted mosques in 1993, The Associated Press reported. His son, Atta, was also injured.

“He used to tell us life was good in New Zealand and its people are good and welcoming,” said Elyan’s brother, Muath. “He enjoyed freedom there and never complained about anything.”

Passerby Jill Keats tended to one of the victims outside the Al Noor mosque. Keats told the BBC she was driving when she saw two men running down the street. At first, she thought she was hearing firecrackers.

“Then all of a sudden it got quite violent … and they started falling,” she told the network. “One fell just to the left of my car. And one fell to the right.”

Keats said she helped one of the men take cover behind her car and applied pressure to his wound.

“I’m 66 and I never thought in my life I would live to see something like this. Not in New Zealand.”