29-year old Brenton Tarrant pleaded guilty to the murder of 51 people, attempted murder of another 40 people and one charge of terrorism.
During the sentencing, he was confronted by survivors and relatives of victims. The gun attacks at the two mosques sent shockwaves around the world.
In the wake of the killings, New Zealand brought in stricter gun laws. The sentencing hearing lasted four days and more than 60 victim impact statements were heard.