7NEWS Spotlight - The truth about Amy: Crime scene detail blows open probe into death of WA mum Amy Wensley

A world-renowned crime scene reconstruction expert has sensationally concluded there is no way young mum Amy Wensley could have killed herself — 10 years after WA Police detectives took minutes to conclude she had.

This week, and for many weeks to come, Seven West Media will release a major new podcast — The Truth About Amy — which will revisit the death of devoted mother-of-two Amy Wensley in Serpentine in 2014.

Amy’s body was found slumped behind the door of her bedroom, with a fatal head wound from a shotgun round inflicted at close range.

Her important belongings were in a car, along with her two daughters — an apparent sign she was about to leave the house she shared with her partner, David Simmons.

But despite this, the awkward position of her body, and the grave suspicions of the very first police on the scene, detectives who arrived rapidly decided the death was a suicide — and lifted the forensic shutters around the room.

After Amy’s body had been removed, that room was deep-cleaned.

But her family have believed ever since that the cause of the 24-year-old’s death was not as clean-cut as the police insisted.

In 2021, following a harrowing inquest, a coroner said she could not rule out foul play was involved, and declined to record a finding of suicide.

And now, award-winning journalists Liam Bartlett and Alison Sandy have undergone their own intense re-investigation of all the facts, for the multi-part podcast which launches on Sunday evening.

As part of that investigation, they enlisted the services of Scott Roder, the boss of US-based forensic firm Evidence Room.

His firm has extensive expertise and was consulted in the cases of murder allegations against Paralympian Oscar Pistorius and Derek Chauvin — the police officer convicted of killing George Floyd.

Mr Roder was asked to bring that expertise to a detailed recreation of the room in which Amy Wensley died, which even included a body double with physical attributes almost identical to Amy’s.

And his conclusion — which will also air on a special Spotlight episode on Channel Seven tonight — was emphatic.

“This is not a suicide, I’m telling you — one hundred per cent not a suicide,” Mr Roder said.

During the inquest, that small room and the state in which it was found was described in detail.

It heard how Amy was found in a seated position with her left foot against the door. She was sitting on her right hand, with her left hand visible on her lap.

Two firearms were immediately visible, a shotgun in her lap — splattered with blood — and a pink .22 rifle leaning against a wall.

The first police officer who saw that tableau thought it would require two hands to shoot a shotgun like the one at the scene, and it would be “very rare and unconventional” for someone to shoot themselves with that weapon with one hand.

“There’s so many things that trouble me about this. The number one thing is the position in which she’s located,” Mr Roder now says.

“The left hand can’t pull the trigger, the right hand can’t pull the trigger. And as an investigator . . . it’s becoming pretty obvious. She didn’t pull the trigger.

“Not in the manner that is consistent with the wound and the other evidence.”

Mr Roder said it was not just the position of Amy’s body that raised a red flag.

The inquest was told the blood-covered shotgun was in Amy’s lap when she was found sitting upright behind the door.

It was also stated that the blood on the shotgun barrel indicated the firearm was close to Amy’s head when fired.

“Well, the answer’s very simple. The gun did not end up like that. The gun was placed like that. Or if somebody just said the gun was like that,” Mr Roder said.

“There’s a reason why I got on a plane from the United States and came to Australia for this case and not any other case. It’s because this case is so inexplicably wrong.”

Mr Roder’s input is just one of the astonishing revelations uncovered by the team behind The Truth About Amy.

The team interviews Amy’s friends and family, including her two daughters. It quizzes police who attended the scene and questions the actions of others.

It interrogates lawyers and advocates about the evidence which was gathered, and which wasn’t.

It confronts the friends and family of David Simmons — one who was there that night, and one who wasn’t, and challenges them on discrepancies in their stories.

And Liam Bartlett tracks down David Simmons himself — who has always denied he was the one who pulled the trigger.

• 7NEWS Spotlight: The Truth About Amy airs Sunday on Channel 7 and 7plus