A BRITISH killer who slaughtered an autistic teen in Australia as part of her twisted “bucket list” had vowed to murder someone before she turned 25.
Jemma Lilley, 26, strangled and stabbed 18-year-old Aaron Pajich – Sweetman to death at her macabre home in Perth before burying his body underneath tile slabs in the back garden.
But prior to committing this heinous crime, Lilley, then just 23, had told how her urge to kill was “getting stronger and stronger”.
Lilley – and accomplice Trudi Lenon – were found guilty of Aaron’s murder in November – and now Seven’s Sunday Night has explored what drove Lilley to kill.
Speaking on last night’s programme was the manager of Lilley’s local video shop, Angela McKibbin, who revealed how the killer would divulge her twisted fantasies.
Angela told Sunday Night: “She (Lilley) told me that she wanted to kill someone and that the feeling that she had was getting stronger and stronger.
“She didn’t know if she could control it for much longer. And that she wanted to kill someone before she was 25.”
Lilley enlisted Lenon, a mum-of-three whom she lived with in Perth. The pair were understood to have been in a relationship.
Lenon then introduced Lilley to Aaron, her son’s friend who lived on the same street.
In June, 2016, Lilley sent a chilling text to bondage-loving Lenon, admitting: “I feel as though I cannot rest until the blood or flesh of a screaming victim is gushing out and pooling on the floor, until all the roads and streets are stained red.”
Lenon replied: “It is definitely time – I am ready, you are ready.”
Later that month, the pair killed the teenager, with Lenon agreeing to help her pal commit her first murder as her “submissive”.
After dropping her kids at school on June 13, 2016, Lenon lured Aaron to the home by asking him to install some computer software.
Aaron was sitting at the computer with a coffee when Lilley approached him from behind and garrotted him with a wire until it broke, then stabbed him three times.
Detectives who searched the home found Lille’s knives and a handwritten list of torture methods including branding, force-feeding, foot roasting, genital mutilation and Chinese water torture.Police also found a knife set – complete with bone saw – one of which may have been used to stab Pajich.
Images from inside the lounge Lilley used as her bedroom give an insight into her twisted mind.
The square of missing carpet on the floor may be where Pajich was killed before his killer removed it to hide evidence, the court heard.
Another photo shows what has been described as a “secret” room with walls covered in blue tarpaulin and black plastic.
Inside was a shopping trolley cut down to its base, with what appeared to be human hair around one of the wheels, and possible blood stains.
In the garage there was a pot containing what looked like meat submerged in acid in a suspected experiment to melt flesh.
CCTV images from the day before show the pair purchasing hundreds of litres of hydrochloric acid to dissolve body parts and concrete to cover a shallow grave.
Underneath a freshly laid tiled slab in the back garden police found Pajich’s fully clothed body wrapped in a white drop sheet with cling film covering his face.
Lilley grew up in England and, as her former stepmother Nina Lilley revealed, was an odd child obsessed with serial killers and murder.
She was dyslexic but determined – and eventually finished writing a violent and disturbing book.
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In one passage she wrote: “I feel I can’t rest until the blood of a fresh, screaming, bleeding victim is gushing out and pooling on the floor.”
Nina said: “The book she wrote was a big problem, it was called Playzone, about this character SOS and I found it very disturbing.
“At the beginning I said, ‘Fair enough, you want to write a horror story’, but I didn’t like the contents of it. It was all about torture and very violent and no empathy for the victims.”
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