They killed again – Crimes That Shook Britain

An insight into the events that led to some of the most significant and disturbing criminal cases of the last few decades and the devastating effects that they have left in their wake. This special investigation looks at shocking cases where dangerous criminals were released from prison—only to commit horrific crimes again. We ask the question: did the justice system fail the victims? Hosted by Dermot Murnaghan. (Series 7 episode 1)