After three women went missing from the same area within less than two years of each other, police concluded they could be looking for a serial killer.

So they brought in FBI-trained profilers to try and get inside the mind of the person responsible for the murders of two women, and the disappearance of another.

Serial killer experts Claude Minisini and Captain David Caldwell were in Perth, after being invited by MACRO detectives when Ciara’s body was found dumped in bushland in Eglington on April 3, 1997.

The FBI experts were brought up by Supt John Leembruggen during his evidence on day 28 of WA’s trial of the century.

Supt Leembruggen, who was a detective with the MACRO taskforce in 1997, told the court he escorted the two experts into the crime scene of Ciara Glennon’s body. As Tim Clarke explains, the experts' inclusion in the investigation was contentious at the time, and even more contentious, was what they said.

Mr Caldwell had created a profile of the killer while in Perth. He told WA media at the time he believed the then unknown suspect “really enjoys the killing” and “only capture or the killer’s death would stop him taking more lives.”

In this podcast, the team also discuss the injuries found on Ciara Glennon’s body, more quizzing of mortuary technicians of how they collected evidence, and why one of the technicians put a towel meant for cleaning up after an autopsy over his shoulders.

All of that, plus legal analysis and answers to some of your questions by defence lawyer Damien Cripps on day 28 of the Claremont trial.

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***WARNING: Graphic Content***

Ciara Glennon's fingernail clippings are the key pieces of evidence the prosecution have to say why they'll prove Bradley Robert Edwards is the Claremont serial killer.

The reason why they're so crucial, is because DNA found under those fingernails contained the DNA of the accused, and the prosecution say it got there because of a struggle.

When Ciara Glennon’s body was found on April 3, 1997, she also had defensive wounds on her arms and hands, indicating she fought for her life.

On day 27 of the Claremont Serial Killings trial, the court heard from the mortuary manager who collected those key pieces of evidence. Dr Robert Macdermit, who had conducted more than 10,000 autopsies during his career, clipped Ciara's fingernails, and detailed the grim task that was conducting her post-mortem.

In that autopsy, Ciara's hair mass was also taken, a gruesome task which was explained in full to the court by Dr Macdermit. Ciara's hair is also an important piece of evidence for the prosecution, because several blue and grey fibres, which they say are from the Telstra uniform and Commodore station wagon used by Bradley Edwards at the time.

However, during his cross examination it was revealed Dr Macdermit could have driven a commodore to the post mortem that day.

The defence also noticed what looked like another body present in the room of the time of Ciara's post-mortem. They also got Dr Macdermit to admit they used the same utensils for different body parts, which were rinsed off during the procedure.

Join Natalie Bonjolo, Tim Clarke and Alison Fan as they explain the details of day 27.

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The defence team for the accused Claremont Serial Killer, Bradley Edwards focussed on forensic collection errors made by police when Jane Rimmer and Ciara Glennon’s bodies were found in 1996 and 1997.

Sergeant Gary Hyde was grilled about errors in transcripts and data entry of forensic pieces from samples collected from the murdered women.

On day 26, we’re joined by forensic expert Brendan Chapman, who helps walk us through some of the potential risks incorrect entries in forensic databases can arise, as well as answer your questions about DNA and forensics.

We also got a glimpse of the type of person Ciara Glennon was in life, with photos of her bedroom just hours after she went missing shown to the court.

The moment trapped in time, as the court saw clothes strewn across her bed and shoes on the floor. The bedroom left by a woman in a hurry, never to return.

Join Natalie Bonjolo, Tim Clarke and Brendan Chapman as they navigate the world of forensics and DNA.

See omnystudio.com/listener for privacy information.