New Zealand's Prime Minister Jacinda Ardern speaks at a National Remembrance Service, Saturday, March 13, 2021, in Christchurch, New Zealand. The service marks the second anniversary of a shooting massacre in which 51 worshippers were killed at two Christchurch mosques by a white supremacist. (Mark Tantrum/Department of Internal Affairs via AP)

FILE - In this Aug. 27, 2020, file photo, Australian Brenton Harrison Tarrant, 29, sits in the dock on the final day of his sentencing hearing at the Christchurch High Court after pleading guilty to 51 counts of murder, 40 counts of attempted murder and one count of terrorism in Christchurch, New Zealand. New Zealand on Saturday, March 13, 2021, marked the second anniversary of one of its most traumatic moments, when 51 worshippers were killed at two Christchurch mosques by the white supremacist gunman, Tarrant. (John Kirk-Anderson/Pool Photo via AP, File)

New Zealand's Prime Minister Jacinda Ardern speaks at a National Remembrance Service, Saturday, March 13, 2021, in Christchurch, New Zealand. The service marks the second anniversary of a shooting massacre in which 51 worshippers were killed at two Christchurch mosques by a white supremacist. (Mark Tantrum/Department of Internal Affairs via AP)

Temel Atacocugu, right, who survived being shot nine times during the attack on the Al Noor mosque, cries as he speaks at a National Remembrance Service, Saturday, March 13, 2021, in Christchurch, New Zealand. The service marks the second anniversary of a shooting massacre in which 51 worshippers were killed at two Christchurch mosques by a white supremacist. (Kai Schwoerer/Pool via AP)

Kiran Munir, whose husband Haroon Mahmood was killed in the attacks, tells the crowd she had lost the love of her life and her soulmate, as she speaks at a National Remembrance Service, Saturday, March 13, 2021, in Christchurch, New Zealand. The service marks the second anniversary of a shooting massacre in which 51 worshippers were killed at two Christchurch mosques by a white supremacist. (Mark Tantrum/Department of Internal Affairs via AP)

In this photo provided by the Department of Internal Affairs, Temel Atacocugu, right, who survived being shot nine times during the March 15, 2019, attack on the Al Noor mosque, speaks at a National Remembrance Service, Saturday, March 13, 2021, in Christchurch, New Zealand. Atacocugu said the slaughter was caused by racism and ignorance. The service marks the second anniversary of a shooting massacre in which 51 worshippers were killed at two Christchurch mosques by a white supremacist. (Mark Tantrum/Department of Internal Affairs via AP)