Born to Kill? Class of Evil

Peter Tobin hid the remains of a victim under the floorboards in a Glasgow church in 2006.

Delve into the case of Altemio Sanchez, who targeted Buffalo, New York during a campaign of rape and murder.

The case of couple Alton Coleman and Debra Brown, who terrorized America's Midwest in 1984.

Stephen Griffiths murdered three people and dismembered his victims.

Take a look at the case of Joanna Dennehy, who lured her three victims to their deaths.