Ms Rimmer and Ms Glennon went missing between January 1996 and March 1997, their bodies later found in the bush.
Edwards, 51, was convicted more than 20 years after the gruesome crimes, but was acquitted of the murder of Sarah Spier, 18, whose body has never been found.
Gruesome evidence in the case seemed too damaging for a jury to hear, but it has now been released after Edwards’ conviction.
It includes details of homemade sex toys found in his garage lair – as well as women’s underwear with holes in them and disturbing scenarios for kidnapping, raping and killing women.
The case also revolved around Edwards’ twisted sexual deviance story in which he stole women’s underwear from clothing lines as a youth.
Police also found disturbing evidence on her computer in the same garage – including access to extreme and violent pornography, and first-person stories about abducted and sexually assaulted women.
The stories had been titled “Chloe’s Story”, “Sophie’s Story” and “Nicola’s Story” and bore a striking similarity to her actual crimes.
“The Story of Chloe” depicted a man kidnapping a woman, stripping her of her clothes, binding her and sexually assaulting her.
“Nicola’s Story” had a male narrator described as “driving at 2am and kidnapping a visibly drunk 19-year-old.”
Another piece of evidence that police found when scanning deleted material on Edwards’ devices was the 2002 extreme pornography film, Forced entry .
Based loosely on the crimes of serial killer Richard Ramirez, the so-called “Night Stalker” of the 1980s in California, it graphically depicts the rape and murder of women.
The court heard Ms Glennon, a 27-year-old lawyer who disappeared from Claremont in the early hours of March 15, 1997.
She was struck by Edwards with an object which fractured her skull, “momentarily stunning her”.
Shocking evidence has heard how she tried to fight her attacker and severely damaged her left sticker, while the tip of her right nail tore off, along with Edwards’ DNA.
Edwards then slit her throat causing a 20cm wound before leaving her body face down in the bush.
Months later Ms Rimmer, 23, disappeared from the same part of Claremont and her naked body was found 25 miles south in the bush by a family picking wildflowers.
Edwards, who will be the subject of a psychiatric report, will be sentenced on December 23.