A British woman found guilty of garrotting and stabbing a teenager to death was obsessed with murder and wanted to tick it off her "bucket list," a court has heard.
Jemma Lilley, 26, and her accomplice Trudi Lenon, 43, killed Aaron Pajich in June 2016.
The deadly attack took place at the house in a suburb of Perth, Western Australia, where both women lived.
During their trial, the court heard that Lilley, from Stamford in Lincolnshire, was fixated with murdering somebody before she was 25 and had written a book about a fictional serial killer.
Pictures released by the court showed the weapons found in the house by police, including a knife set and a bone saw.
They also showed the interior of the property decorated with posters and dolls from horror movies.
CCTV from around the time of the murder shows Lenon carrying what appears to be a large knife around the house.
Investigators also discovered a piece of rectangular carpet had been cut away in the property's lounge, which Lenon used as a bedroom.
Prosecutors argued this had been where Mr Pajich was garroted and stabbed.
The two women reportedly lured their victim to the house to download software before killing him.
The 18-year-old's body was discovered buried under some red tiles in the backyard.
A concealed room was also discovered in the house by police, which had walls lined with tarpaulins.
A cut-down trolley was discovered in the room which police say was used to move the victim's body.
The day before he was attacked, the two women were recorded on CCTV buying hydrochloric acid at a hardware store.
During the trial, the court heard that Lilley had wanted to tick murder off her "bucket list" and was so "euphoric" when she had done so she boasted about it to a colleague.
Lilley had also written a book about a fictional serial killer called SOS and called herself the same name.
Lenon, meanwhile, called herself Corvina, a name she used as part of Perth's bondage scene.
Speaking after the trial, the victim’s father Keith Sweetman said: "I'm just very glad that we've enabled our community to be free of two evil people."
The two women have fallen out since the murder and blamed each other for Mr Pajich's death during the trial. They will be sentenced in February.