...Toughest Cases. In the 1980s and '90s, there were around 200 murders and attacks on sex workers across Britain. Police were looking for a serial killer. S1/Ep5
...Toughest Cases. For 17 years, a serial attacker raped elderly victims in their own homes in south London. How did officers catch the culprit? S1/Ep4
...Toughest Cases. In 2012, five-year-old April Jones disappeared while playing with friends in a Welsh village. DS Andy John recalls the hunt for her killer. S1/Ep3
...Toughest Cases. In 1991, 13 children collapse in a Lincolnshire hospital: four of them died. DS Stuart Clifton reveals the discovery of a child serial killer. S1/Ep2
...Toughest Cases. DS David Swindle and forensic scientist Carol Rogers recount how the murder of Angelika Kluk in 2006 was linked to a serial killer. S1/Ep1
...Toughest Cases. In the 1980s and '90s, there were around 200 murders and attacks on sex workers across Britain. Police were looking for a serial killer. S1/Ep5
...Toughest Cases. In the 1980s and '90s, there were around 200 murders and attacks on sex workers across Britain. Police were looking for a serial killer. S1/Ep5
...Toughest Cases. In the 1980s and '90s, there were around 200 murders and attacks on sex workers across Britain. Police were looking for a serial killer. S1/Ep5
...Toughest Cases. In the 1980s and '90s, there were around 200 murders and attacks on sex workers across Britain. Police were looking for a serial killer. S1/Ep5
...Toughest Cases. For 17 years, a serial attacker raped elderly victims in their own homes in south London. How did officers catch the culprit? S1/Ep4
...Toughest Cases. For 17 years, a serial attacker raped elderly victims in their own homes in south London. How did officers catch the culprit? S1/Ep4
...Toughest Cases. For 17 years, a serial attacker raped elderly victims in their own homes in south London. How did officers catch the culprit? S1/Ep4
...Toughest Cases. For 17 years, a serial attacker raped elderly victims in their own homes in south London. How did officers catch the culprit? S1/Ep4
...Toughest Cases. In 2012, five-year-old April Jones disappeared while playing with friends in a Welsh village. DS Andy John recalls the hunt for her killer. S1/Ep3
...Toughest Cases. In 2012, five-year-old April Jones disappeared while playing with friends in a Welsh village. DS Andy John recalls the hunt for her killer. S1/Ep3
...Toughest Cases. In 2012, five-year-old April Jones disappeared while playing with friends in a Welsh village. DS Andy John recalls the hunt for her killer. S1/Ep3
...Toughest Cases. In 1991, 13 children collapse in a Lincolnshire hospital: four of them died. DS Stuart Clifton reveals the discovery of a child serial killer. S1/Ep2
...Toughest Cases. In 1991, 13 children collapse in a Lincolnshire hospital: four of them died. DS Stuart Clifton reveals the discovery of a child serial killer. S1/Ep2
...Toughest Cases. In 1991, 13 children collapse in a Lincolnshire hospital: four of them died. DS Stuart Clifton reveals the discovery of a child serial killer. S1/Ep2
...Toughest Cases. A detective and a forensic scientist recount the murder case of Angelika Kluk in 2006. How did they link it to one of Scotland's worst serial killers? S1/Ep1
...Toughest Cases. A detective and a forensic scientist recount the murder case of Angelika Kluk in 2006. How did they link it to one of Scotland's worst serial killers? S1/Ep1
...Toughest Cases. A detective and a forensic scientist recount the murder case of Angelika Kluk in 2006. How did they link it to one of Scotland's worst serial killers? S1/Ep1