Relatives of the victims killed by Brenton Tarrant in New Zealand's worst mass shooting have pleaded with the judge to make sure he is never freed.

The anger and grief in the courtroom was palpable as family members called the terrorist a "maggot", "a big fat loser" and a "pathetic human being".

"Your father was a garbageman and you became trash of society," Ahad Nabi, the son of one of the victims, said. "He is ashamed of your identity. You deserve to be buried in a landfill."

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