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A father and son who fled the civil war in Syria for "the safest country in the world" were buried before hundreds of mourners Wednesday, the first funerals for victims of shootings at two mosques in New Zealand that horrified a nation known for being welcoming and diverse.

The funerals of Khalid Mustafa, 44, and Hamza Mustafa, 15, came five days after a white supremacist methodically gunned down 50 worshippers at two mosques in Christchurch — a massacre that he broadcast live on Facebook.

Hamza's high school principal described the student as compassionate and hardworking, and said he was an excellent horse rider who aspired to be a veterinarian.

Those present included Hamza's younger brother, 13-year-old Zaed, who was wounded in an arm and a leg during the attack. The boy tried to stand during the ceremony but had to sit back in his wheelchair, one mourner said.

"We tried to not shake his hand, and not touch his hand or his foot, but he refused, he wanted to shake everybody's hand, he wanted to show everyone that he appreciated them. And that's amazing," said Jamil El-Biza, who traveled from Australia to attend the funeral.

The Mustafas had moved to New Zealand last year, after spending six years as refugees in Jordan. Mustafa's wife, Salwa, told Radio New Zealand that when the family asked about New Zealand they were told "it's the safest country in the world, the most wonderful country you can go ... you will start a very wonderful life there."

She added, "But it wasn't."

Prime Minister Jacinda Ardern said the family should have been safe.

"I cannot tell you how gutting it is to know that a family came here for safety and for refuge," she said.

Families of those killed had been anxiously awaiting word on when they could bury their loved ones. Police Commissioner Mike Bush said police have now formally identified and released the remains of 21 of those killed. Islamic tradition calls for bodies to be cleansed and buried as soon as possible.

The burials began soon after Ardern renewed her call for people to speak of the victims rather than the man who killed them.

Also on Wednesday, a man accused of sharing video footage of Friday's massacre was jailed by a judge until his next court appearance in mid-April. And Bush said he believes police officers stopped the gunman on his way to a third attack.

Ardern's plea against giving the accused gunman notoriety followed his move to represent himself in court, raising concerns he would attempt to use the trial as a platform for airing his racist views.

During a visit Wednesday to the high school Hamza and another victim attended, Ardern revisited that thought and asked students not to say the attacker's name or dwell on him.

"Look after one another, but also let New Zealand be a place where there is no tolerance for racism," she told students at Cashmere High School. "That's something we can all do."

Another Cashmere student, 14-year-old Sayyad Milne, also died in the attack.

About 30 people wounded in the attacks remained hospitalized as of Tuesday evening. About 10 of them were in critical condition, including a 4-year-old girl.

Brenton Harrison Tarrant, a 28-year-old Australian man, has been charged with murder and is next scheduled to appear in court on April 5. Police have said they are certain Tarrant was the only gunman but are still investigating whether he had support from others.

Ardern previously has said reforms of New Zealand's gun laws would be announced next week and she said an inquiry would be convened to look into the intelligence and security services' failures to detect the risk from the attacker or his plans.

New Zealand's international spy agency, the Government Communications Security Bureau, confirmed it had not received any relevant information or intelligence before the shootings.

Sheik Taj El-Din Hilaly, of Sydney, traveled to Christchurch to attend or lead some of the funerals. Through a translator, he said he felt compelled to support the grieving. A nationwide lockdown on mosques was imposed until Monday, which Hilaly said had upset Muslims whom he had visited in Auckland. Police continue to guard mosques across the country.

Philip Arps, 44, appeared in a Christchurch court Wednesday on two charges of distributing the killer's livestream video of the attack on the Al Noor mosque, the first mosque that was attacked, a violation of the country's objectionable publications law. Each charge carries a maximum sentence of 14 years in prison.

Arps, heavily tattooed and dressed in a T-shirt and sweatpants, hasn't entered a plea. He remained expressionless during the hearing, his hands clasped behind his back.

Judge Stephen O'Driscoll denied him bail.

Charging documents accuse Arps of distributing the video on Saturday, one day after the massacre.

Bush said they believe they know where the gunman was going for a third attack when officers rammed his car off the road but won't say more because it's an active investigation.

In a 74-page manifesto he released before the attack, Tarrant said he was going to attack two mosques in Christchurch and then one in the town of Ashburton if he made it that far.

Bush also revised his timeline, saying officers rammed the suspect 21 minutes after the first emergency call rather than 36 minutes. Bush said FBI agents have traveled to New Zealand to help with the investigation.

Abizar Valibhai, of Christchurch, said Wednesday's burials marked an important moment.

"It's not only for the Muslim community, but for the whole of New Zealand, and the world as well," he said. "If we don't show our support at this time, when are we going to show it?"

He said there would be many waves of emotions to come for the families of the victims.

"They are fathers, they are mothers, they are brothers, they are sisters, they are wives," he said. "There are a lot of things that will be shattered."

Residents of this close-knit city have created makeshift memorials near the two targeted mosques and at the botanical gardens, where a mountain of flowers has grown by the day.

Janna Ezat, whose son, Hussein Al-Umari, was killed in the Al Noor mosque, visited the memorial at the gardens and became overwhelmed by the outpouring of love. She knelt amid the flowers and wept, grabbing at daisies and lilies as though she might find her boy in them.

Ezat is comforted by reports that Hussein confronted the killer, charging at him after surviving the first spray of bullets.

"I'm very happy. I'm wearing white. We normally wear black," she said. "But he is a hero and I am proud of him."