Myra Hindley

Terry West, 73, who was married with two adult children, is thought to have died earlier this week. Lesley Ann was just ten years old when he was approached by Ian Brady and Myra Hindley at a funfair on Boxing Day 1964. The pair then took her before subjecting her to sickening abuse and torture, which they caught on tape. They buried her body in a shallow grave on Saddleworth Moor, then murdering her and burying her body in a shallow grave. Terry West, Lesley Ann's older brother, was haunted by the agony his sister suffered in her final hours, and he talked about how he blamed himself.

I knew who was under the black balaclava because he took it off, showed me his face, and groped when he pulled the trigger on my lover. BANG! Got the rifle, grabbing my boyfriend Ron's arm. His sleeve was soaked in blood. 'This one's for Mickey Calvey!' Danny yelled before unleashing the bullet that killed Ron Ron.

Experts told the Mail that the trust between Scarlett Jenkinson (left) and Eddie Ratcliffe (right) had a strong influence in sharing their darkest fantasies on social media. David Wilson, a Birmingham City University professor of criminal justice and a former prison governor who worked in special units for some of Britain's most notorious serial murderers, believes that plotting the murder carried out their scheme to murder Brianna Ghey (inset), who was killed within weeks of the pair identifying her as a victim. 'Brianna's murder went from an imagined dream to a reality in a matter of a breath,' says Professor Wilson.' Jenkinson's friendship with Ratcliffe was a classic folie à deux, which essentially means a shared madness or delusion that is not uncommon in couples who die, according to him. Jenkinson and Ratcliffe were not boyfriend and girlfriend, and unlike some notorious British murder couples, like Moors Murderers Ian Brady and Myra Hindley (bottom) and Rose and Fred West, the female - Jenkinson, was the more 'dominant' one in the union.