Katherine Kinght, the Cannibal Killer

Katherine Mary Knight (born 24 October 1955) is the first Australian woman to be sentenced to life imprisonment without parole.

Katherine Knight had a well-documented history of clownfuck lunacy, beginning when she tried to strangle her first husband to death on their wedding night for daring to only have sex with her three times before falling asleep. When he finally left her, Knight took their infant daughter and dropped her on a stretch of nearby train tracks (the baby was rescued by a hobo), then rampaged through town threatening random strangers with an ax. Image Source- canadiancrc.com

Katherine in her younger days. Image source- google.com

Knight eventually met a father of three named John Price and they moved in together, despite the fact that Price was well aware of her explosive fits of inexplicable slobbering Looney Tunes rage. Price wound up kicking her out and filed a restraining order against her, telling his co-workers that if he ever failed to show up for work, she had probably killed him. He then gallantly allowed Knight back into his house for sex and fell asleep beside her, which suggests that Price perhaps didn't completely understand how restraining orders are supposed to work. Knight underscored this error by stabbing Price 37 times. When Price didn't show up for work the next day, his co-workers called the police, who showed up at Price's house to discover his skinned, headless body lying on the living room floor.

When Knight married David Kellett. Image source- Daily Mail

Knight had draped his skin, completely intact in a single piece, over an S hook in a doorway like a vanity curtain in Leatherface's house. Price's head was boiling in a pot on the stove, and pieces of his butt had been pan-fried with vegetables and gravy and plated up on the table in two place settings with name tags indicating that they were meant for Price's adult children (although the kids weren't expected, so she probably should have covered the plates with tinfoil).

Image source- horrorfuel.com

Knight pleaded guilty and was sentenced to life in prison with no possibility of parole -- her file literally bears the words "NEVER TO BE RELEASED," like a fucking supervillain in a subterranean vault.