The Killer Within

Kim Edwards and Lucas Markham, who became Britain's youngest double murderers in 2016 when they killed Kim's mother and sister in their beds - then sat downstairs watching movies

What drives a man to murder a stranger? Detectives reflect on the case of Rodrigo Hernandez, who did just that

What drives a man to kill his wife? Ahmed Al Khatib blamed evil spirits as he plotted to get away with murder.

Described as charming, detectives saw another side to Shawn Grate when they found two decomposing bodies in his home

The story of the nurse who confessed to murdering up to 40 patients during his 16-year career

She was trusted to protect the community as a police officer, but ended up committing one of the worst crimes imaginable.

A look at how Wilbern Cooper was able to live a normal life for 28 years, knowing he had brutally killed a person.

The Brotherhood's Revenge: A feud between two rival Birmingham gangs comes to a head when two innocent teenage girls are killed

The shocking story of the murder of French au pair Sophie Lionnet at the hands of the couple she worked for.

12 years after murdering her 87-year-old father in an act of revenge, Barbara turned herself in. What drove her to kill? (