In this archive footage, Gacy jovially demonstrates to a naïve TV reporter "how to tie knots" - giving a glimpse of how he captured victims.

The Yorkshire Ripper Peter Sutcliffe and necrophile child molester Jimmy Savile struck up an uncomfortable friendship in the late 1980s...

Ed Kemper's brother lives in fear that his huge murderous sibling will use his IQ to get out of prison... and hunt him down and kill him.

After Edmund Kemper killed and decapitated his mother, he tore out her vocal cords and shoved them down the waste disposal.

There have been few photos of Ed Kemper since he was jailed in 1973 for eight counts of murder - including that of his own mum... until now

He confessed that he had lured boys to his home where he sodomised them, strangled, dismembered, and dissolved them in acid.

Sixty personal belongings of 'Des' are up for grabs - including his typewriter, keyboard and THOSE glasses

To people wandering through the park, Dorángel Vargas would have looked like any other homeless person. But to him, they looked like dinner.

There's still time to order one of our brilliant True Crime/Mew Crime cards for the cats 'n' killers lover in your life.

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.

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

Rose West also wore a pair of oversized specs... but later told her abused stepdaughter she found them "funny" to look back at.

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.