Christchurch, March 19 -- New Zealand Prime Minister Jacinda Ardern vowed Tuesday never to utter the name of the twin-mosque gunman as she opened a sombre session of parliament with an evocative "as-salaam alaikum" message of peace to Muslims.

"He will face the full force of the law in New Zealand," Ardern pledged to grieving Kiwis, while promising that she would deprive the man, an avowed white supremacist who slaughtered 50 people in Christchurch, of the publicity he craved.

"He sought many things from his act of terror, but one was notoriety," she told assembled lawmakers of the 28-year-old Australian accused of the slaughter.

"That is why you will never hear me mention his name. He is a terrorist. He is a criminal. He is an extremi...