Kayo Matsuzawa’s body was found stashed in a small cupboard in a building in Auckland’s CDB in 1998.

She was naked, she had been there for at least 10 days.

And 21 years on - even in spite of a hefty $75,000 reward offered in 2007 - her killer has never been caught.

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In 2009 a toddler vanished in West Auckland.

For more than a week police, search specialists and volunteers combed the city for any sign of the little girl.

But she was nowhere to be found.

As investigators started to fear foul play, a shocking and tragic discovery was made.

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It was New Zealand's darkest day, and one we will never forget.

Our newsroom got the first call from a witness just minutes after the shooting started.

For the first time we are sharing audio from that interview - and others - as we take you back to the day that changed us all.

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From the NZ Herald newsroom comes A Moment in Crime - a podcast delving into some of New Zealand’s biggest cases.

Anna Leask has been a crime and justice reporter at the Herald for more than a decade.

Each month she'll take you inside some of our most infamous incidents, notorious offenders and behind the scenes of high profile trials and events to show you what’s really happening in your backyard.

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