Jon Kay returns with an update on his investigation into the disappearance of Cheryl Grimmer from a beach in New South Wales, Australia in January 1970.

In this episode, Jon follows up some of the many emails from listeners who got in touch after the podcast came out - including potential witnesses who think they might have important information.

In this episode, Jon hears their stories and find out what response they’ve had from the police.

And he catches up with Cheryl’s family, as they step up their campaign for justice.

Presented by Jon Kay, original music composed by Elizabeth Purnell, and produced for BBC Audio Bristol by Chris Ledgard