The families of the fallen will have justice.

That's the vow of our Prime Minister in the wake of the mosque massacre.

In delivering her message of condolence in the House, Jacinda Ardern says the man at the centre of this attack will face the full force of the law.

She says he sought notoriety - but New Zealand will give him nothing, not even his name.

Ardern says she will never mention his name.

And she's imploring others to speak the names of those who were lost - rather than the name of the man who took them.

In other news, the incoming director of Auckland's Art Gallery steps down over allegations of harassment, Wellington Central Library to close indefinitely.