This madman was obsessed with becoming a serial killer - Killer Britain With Dermot Murnaghan
8:00
Mark Martin had a gruesome reputation in Nottingham. Known for his violent temper and crooked disposition, if he was on one side of the city you'd be best off moving to the other. Killer Britain explores British murder stories filled with detective intrigue and chilling storylines. Dermot Murnaghan guides viewers through some of the most deeply shocking crimes of recent times.
