Could new technology help to finally reveal who killed Sophie Toscan du Plantier?
After prime suspect Ian Bailey’s death last year, Sophie's uncle Jean-Pierre Gazeau said their family would never get the truth.
But now a Garda cold case team has used new technology, called M-Vac, to harvest DNA from items recovered at the West Cork crime scene.
We talk to Jared Bradley, the man behind M-Vac, about how it has helped US investigators to crack decades-old cases.
But first, Southern correspondent Barry Roche shares what we know about progress in the du Plantier case.
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