Woodcut Media

When members of a workforce began falling violently ill, locals believed a virus was sweeping the area, but after the death of two men it became clear that the only impurity was a serial poisoner with a toxic past.

The terrible events of November 1, 2007, when the 21-year-old Kercher was brutally murdered while studying in the Italian university town of Perugia.

A woman's mutilated body is found in Bournemouth, with two clumps of hair in her hands. As other women report having their hair secretly cut, the hunt to find the killer leads the police from the UK to Italy.

While the hunt for Lucan has dominated the media for half a century, the name of the victim, Sandra Rivett has been forgotten.

In a South London police station, a homeless man kills hishis cellmate. Police interview 53-year-old Kieran Kelly, and then he calmly confesses to decades of murders, many on the London Underground.

Investigates the 10-day killing spree carried out by Joanne Dennehy in March 2013.