One additional victim was found at the Dean Ave Mosque.
Wearing a white prison suit, Tarrant appeared handcuffed and barefoot.
Former NSW personal trainer Tarrant did not apply for bail when he appeared in court on Saturday and was remanded in custody without plea until April 5.
The video footage showed a man driving to the mosque, entering it and shooting randomly at people inside. Police have warned the public that sharing the video is an offence and social media companies have said they are trying to scrub it from their platforms. No images have emerged from there.
Speaking at a press conference on Sunday following the attacks that killed 50 people, Ms Ardern said if her office could have done anything with the information sent by accused shooter Brenton Tarrant, "absolutely we would have".
A spokesman said the email did not describe the specific incident and that there was "nothing in the content or timing that would have been able to prevent the attack".
The distraught man was spoken to by a crowd of people outside the police cordon before he crossed the street, his face full of dismay.
"Just around the entrance door there were elderly people sitting there praying and he just started shooting at them", Mazharuddin told Sky.
He added, two other people arrested near to where the massacres happened are not believed to be involved in the attacks.
Prior to the shooting, Tarrant had no previous criminal record in either Australia or New Zealand and "was not known to authorities in connection with far-right violence", according to Ardern. "Obviously by some of the recipients, but not at a time prior to the attack", Commissioner Bush said. Thirty- six people were still being treated on Saturday, 11 of whom remained in intensive care. 48 people were injured in the terrorist attack that was carried out during Friday prayers at Al Noor Masjid and a smaller mosque in Linwood.
"Hi guys how are you".
She also signalled that if convicted, he would serve his sentence in New Zealand.
The majority of victims were migrants or refugees from countries such as Pakistan, India, Malaysia, Indonesia, Turkey, Somalia, Afghanistan and Bangladesh.
A story of true heroism is emerging from the horrific terror attacks on innocent Muslims in New Zealand.
"I'm not sure how to deal with this".
We have all been fortunate to spend time in Christchurch and have felt the warm, open-hearted and generous spirit that is core to its remarkable people.
The New Zealand Red Cross has published a list of missing persons on its website.
Syrian refugee Khaled Mustafa, who had arrived in New Zealand with his family just months ago, was amongst those killed on Friday.
"This is not the New Zealand that has welcomed them and that it is not a reflection of the New Zealand they know, and that sentiment came through very strongly".
On Facebook, a user named Alta Marie said her husband Zulfirman Syah and her son were both shot at the Linwood Mosque.
However, because none of the bodies have been returned to the victims' families because of the investigation, many having been unable to bury their dead within the 24 hours customary in Islam.
He used a semi-automatic shotgun as well as a modified semi-automatic rifle as he pummelled victims with multiple bullets.
Unlike the USA, the right to own a firearm is not enshrined in New Zealand's constitution.
"Our gun laws will change".
He also reached out to the Muslim community in Christchurch and in New Zealand.
The AR-15 was used at Port Arthur, as well as a number of high-profile mass shootings in the United States.
The Pacific Islands Association of non-governmental Organisations (PIANGO) also expressed its "heartfelt grief and sorrow" over the attacks.
Ardern said she had spoken with Trump, who asked how he could help. "My message was sympathy and love for all Muslim communities", she said she told him.