In 2009 Angela Simpson tortured and killed a man over the course of three days, and showed no shred of remorse when asked about it, instead responding in a chillingly emotionless manner.
Her victim was 46-year-old disabled man Terry Neely, who she lured to her apartment in Phoenix, Arizona, to torture and kill.
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Neely, who was confined to a wheelchair, was forced to watch his own torture in the mirror as Simpson beat him, stabbed him and pulled out his teeth.
According to Neely's autopsy a three inch nail had been driven into his brain and he had been stabbed around 50 times, while his throat had also been cut.
Simpson pleaded guilty to murder in the first degree, and when she was sentenced she said she had wanted to keep Neely alive for a week so she could torture him for longer.
She received a sentence of natural life in prison along with 14 years for other charges.
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In the 2012 interview Simpson claims Neely was a 'snitch' and 'got what he deserved', calmly insisting that she felt no remorse for killing him.
She said she found killing him 'necessary, just necessary' and was 'not at all' remorseful when asked about her killing of the 46-year-old man.
Telling interviewer Mike Watkiss 'everybody has a reason to kill', she said she took her victim to her apartment and then 'kicked his ass and killed him'.
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She also said she believed she should have received the death penalty, though said it wasn't the outcome she wanted.
Simpson said she was a 'little upset that I won't be able to, you know, kill more snitches', and said she wished she'd had more time to kill someone else.
The 2012 interview ends with her saying she'd kill again 'if the opportunity arises, I hope so' before dropping the cold demeanour to happily declare that the interview would be 'good s**t' and asking Watkiss to 'make it look good'.
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The woman's chilling interview ended up being the inspiration for Killing Eve serial killer Villanelle, as played by star Jodie Comer.
When Killing Eve writer Phoebe Waller-Bridge 'fell into a Google hole' while researching female assassins, she found Simpson's interview and was astonished to see such a direct confession.
Simpson's calm, direct and matter-of-fact answers to the questions put to her in the interview changed Waller-Bridge's perception of what a murderer might act like.
She said: "She sounds more like a psycho than anyone has ever sounded."
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That interview ended up being one of the puzzle pieces which brought Villanelle from page to screen and created the award-winning drama.
Topics: Crime, Jodie Comer, Killing Eve, True Crime
Joe Harker