Like Jimmy Savile, Watkins abused his celebrity status to get to his victims. A former detective who worked on the ITV investigation into Savile, has become closely involved in this case.
Mark Williams-Thomas is convinced that many more victims will now come to light following Watkins' conviction. The LostProphets star performed on a world stage, but were there any clues about his dark side? John Willats has been finding out.
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Missed tonight's Wales at Six? Catch up here.
Not a pleasant night with heavy showers for much of Wales.
Simon Tilley from Caerphilly made a film documenting his baby's life and how he's trying to make him into a Star Wars fan.