Hamza was an excellent horse rider who aspired to be a veterinarian, Wilson says.
Hamza's 13-year-old brother, Zaid, watched from a wheelchair, his leg bandaged from where he had been shot, as the bodies wrapped in white shawls and in open caskets were lowered into the ground. Khaled Mustafa, 44, and Hamza, 16, arrived as refugees to New Zealand previous year.
There are an estimated 1.5 million firearms in New Zealand - roughly one for every three citizens and more than double the rate in Australia.
She added: "But it wasn't".
The 28-year-old Australian gunman attacked two mosques in Christchurch, killed 50 people and wounded almost 30 others while broadcasting on Facebook live before police brought an end to his rampage within 21 minutes of the first emergency calls concerning the shooting.
A Syrian refugee and his son who fled the chaos of their homeland only to meet tragedy in New Zealand were buried on Wednesday in the first funerals of those killed in the mosque massacres.
Prime Minister Ardern has promised stricter gun laws in the country in the wake of the attack. They condemned the attack and passed their condolences to the bereaved families who lost their loved ones in the attack.
Bush said police had to prove the cause of death to the satisfaction of the coroner and the judge handling the case.
Those aren't the only victims' names that have emerged publicly, however. She said: "Never mention the perpetrator's name ... never remember him for what he did".
Nash also revealed more details around the man's arrest. The move had raised concerns he would use the trial as a platform for his racist views.
Thousands of people are expected to come together tomorrow for an emotional Friday prayer service led by the imam of one of the two mosques targeted in the attack.
Ardern has announced that Friday's call to prayers for Muslims will be broadcast nationally and there will be a two minute silence. "That's something we can all do".
About 30 people wounded in the attacks remained hospitalized as of Tuesday evening. About 10 of them were in critical condition, including a four-year-old girl.
A judge ordered Tarrant to return to New Zealand's High Court on April 5 for his next hearing on one count of murder, though he is expected to face additional charges.
Police told reporters they believe the alleged gunman was on his way to another attack when officers stopped him.
Ardern, who has vowed to tighten New Zealand's lax gun ownership laws, said Wednesday the horrific events in Christchurch showed the need for a global approach to confront the dangers posed by extremists' use of social media.
New Zealand's government will next week also consider tightening licensing rules and ammo restrictions.
Mohsen Mohammed Al Harbi, 63, of New Zealand.
Speaking of the Mustafa family, Ardern said: "I can not tell you how gutting it is to know that a family came here for safety and for refuge, and they should have been safe here".
The suspect was intercepted within 21 minutes of the first calls coming in, he said.
Commissioner Bush said: "I can assure you this is an absolute worldwide investigation".
Abizar Valibhai, of Christchurch, said Wednesday's burials marked an important moment.
On the day that the first victims of New Zealand's worst ever mass shooting were buried, police said that an even bigger attack had been planned and averted.
Javed Dadabhai, who travelled from Auckland to help bury his cousin, said families and volunteers had been warned of a slow process. "There are a lot of things that will be shattered".