Flanked by armed police he flashed an upside-down "okay" signal, a symbol used by white power groups across the globe.
Tarrant has been remanded in custody until April 5, when he will appear again before the High Court in Christchurch.
Shaik said the last he heard, his uncle was in surgery and his condition was critical.
They targeted Muslims specifically.
Asked by a reporter in Washington if he thought white nationalism is a rising threat around the world, Trump said: "I don't really".
"It's outrageous" he said. Ardern said some were from Pakistan, Turkey, Saudi Arabia, Bangladesh, Indonesia and Malaysia. Malaysia said two of its citizens were hospitalized, and the Saudi Embassy in Wellington said two Saudis were wounded.
"But in doing so, it was an attack on all peace loving peoples, on all innocent peoples".
The site of the terrorist attacks is sealed off in Christchurch, New Zealand, on March 16, 2019.
The Herald later quoted one of the witnesses from Lindwood, Syed Mazharuddin, who said that the gunman was confronted by a mosque caretaker, who wrestled one of his guns away but did not shoot because he "couldn't find the trigger". "Our hearts are breaking for your loss", read one of the notes marked with a string of x-kisses.
Ardern said Tarrant was a licensed gun owner who bought the five guns used in the crimes legally.
A man who could not find out information about what happened to his father and two brothers pushed through police barricades at one of the cordons in an effort to get closer.
The footage shows him returning to the mosque, shooting a woman outside, and getting back in his auto.
"Their intervention may very likely have saved further lives". One man, 18-year-old Daniel Burrough, has been charged with incitement.
Tributes to the victims poured in from around the world.
One of the individuals in custody is Australian, according to Australian Prime Minister Scott Morrison.
New South Wales police commissioner Mick Fuller said police had visited Tarrant's childhood home in the town of Grafton, north of Sydney, and spoken to family members as part of their investigation.
But for how long must non-white victims be the proverbial canary in the coal mine before Western governments commit to a serious interrogation of how Islamophobia and other forms of racism are being perpetuated?
"Across all religions, our houses of worship are a source of refuge, of prayer, and of love; to see such a heinous and hate-filled act occur in what should be places of peace is the darkest of evils".
Ardern said children were caught up in the attack and one of the injured was a two-year-old boy.
"The team showed a united front in terms of the decision", said Mr Curwin.
Facebook and other social media that carried the video struggled to purge it from their networks, earning rebukes from the public and industry experts for not acting swiftly enough. "That work is already underway".