The gunman in Christchurch massacre Brenton Harrison Tarrant has been sentenced to to life in prison without parole.

The white supremacist gunman did not only carried out the heartless act, but live-streamed his massacre of 51 people at two New Zealand mosques, Evening Standard reports.

On the judgment, after several court proceedings, Tarrant pleaded guilty in Christchurch to murder, attempted murder and terrorism over the attacks in the city which left 51 people dead.

Meanwhile, a murder conviction carries a mandatory sentence of life in prison. The judge can impose a life term without parole, a sentence that had never before been used in New Zealand.

High Court Judge Cameron Mander said that a finite term would not be sufficient. “As far as I can discern, you are empty of any empathy for your victims,” he said in handing down the sentence on Thursday.