Richard Ramirez was scary enough when we knew him just as a serial rapist with amazing cheekbones, but details of his arrest are alarming.

"Do you promise to tell the tooth, the whole tooth and nothing but the tooth?" Richard Ramirez's mouth did.

One loved rape and worshipped Satan, the other was a God fearing spinster. This is the story of Richard Ramirez and Doreen Lioy.

Richard Ramirez was itching to get back on the streets... and planned to escape using an array of random items hidden in his rectum.

Dennis Nilsen was a serial killer, but he was also a dog dad. His dog Bleep, a cute black and white mongrel, was his only friend during his

Dennis Nilsen was slashed across the face with a razor when he was in prison, leaving him with a wound that needed 89 stitches.

Alive, the mere mention of his name was enough to provoke anger and rage - but death did little to weaken Ian Brady's grip.

Do you know your strangler from your ripper? Come and test your knowledge with our Friday quiz.