Documentary series. Ex-police detective Mark Williams-Thomas discovers another murder that threatens to derail his investigation into Angus Sinclair. [S,AD]
Documentary series. Former police detective Mark Williams-Thomas investigates the brutal 1977 murders of Anna Kenny, Agnes Cooney, and Hilda McAuley. [S,AD]
Explosive documentary series. Mark Williams-Thomas digs into infamous cold cases for evidence that could link them to two of Britain's most notorious killers. [S,AD]
Mark Williams-Thomas re-investigates the disappearance of Carole Packman. Mark uncovers a series of letters in which Sam's father speaks for the first time about what happened. [S]