<p>Desperate to clear Mahmood Mattan's name, his family have one last throw of the dice.
It works - and finally his widow and three sons have their day in court.
Forty six years after Mattan was hanged, a series of revelations are made which seriously undermine the case against him.
And, explosive new evidence emerges which points the finger at who the real killer could be.</p><p>Presenter and Producer: Danielle Fahiya
Sound Design: Cathy Robinson
Original Music: Rhodri Llewellyn John
Executive Producers: Karen Voisey and Andy Maguire
Story Consultant: John Norton
Production Manager: Andrea Deere</p><p>History Consultant: Chris Phillips.
Archive: BBC Black Britain; ITV Wales</p><p>Zoe Davies - Laura Mattan
Dean Rehman - Phillip Mattan; and Eddie Mattan</p>
