Detectives: My Killer Case

Martin Brunning tries to catch one of Great Britain's most notorious female serial killers.

Detective Superintendent Mark Birch had to take decide to escalate a missing person case to a murder investigation just before Christmas in 2006. As the investigation unfolded a picture emerged of a brutal vengeance crime committed brothers on their brother. Culminating with video footage as one of the murderers takes the police into the woods to show them where the body has been buried.

Insight into the investigation of the crimes committed by Steve Wright, the infamous serial killer.

Insight into the investigation of the crimes committed by John "Canal Killer" Sweeney.