30 years ago, five members of the Bain family in Dunedin were found dead in their family home.

The one surviving family member, David, was later convicted of murdering his parents and three siblings.

He served 13 years in prison before the Privy Council quashed his convictions, and he was subsequently found not guilty on all charges at a retrial in 2009.

Despite this, for three decades, this case has joined a gallery of notorious murders that have fascinated New Zealanders across the years.

Today on The Front Page, long-time David Bain advocate Joe Karam reflects on his three decades linked to the case in an exclusive interview for the 30th anniversay.

And later, we discuss our fixation with this and other cases with AUT University Professor of Pop Culture, Dr Lorna Piatti-Farnell.

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You can read more about this and other stories in the New Zealand Herald, online at nzherald.co.nz, or tune in to news bulletins across the NZME network.

Host: Chelsea Daniels
Sound Engineer: Paddy Fox
Producer: Ethan Sills