On a Sunday afternoon in Christchurch in 1996, scrap metal dealer John Reynolds failed to return home for lunch.
Later that evening, his brother found the 55-year-old lying in a pool of blood at the scrap yard.
More than two decades on, his killer has never been found but the case is still very much alive.
We speak to Stuff investigative journalist Blair Ensor who investigated the murder with Martin Van Beynen for the three-part Stuff podcast Heavy Metal.