• Hannah Phillips

Circumstances of Mannum Man’s Death Being Investigated


The death of a man who was found unconscious, wrapped in blankets, in a Mannum street in April is being treated as a homicide, police have announced today.

Adrian Trett (pictured) never regained consciousness and died in the Royal Adelaide Hospital on 5 May after being found on David Street about 7am on Monday 23 April.


The 45-year-old local man was alongside his scooter and had suffered a serious head injury.

The circumstances surrounding how he came to be in that location with those injuries have been the subject to an investigation, with his death considered “unexplained” at this time.

“We are still investigating the full circumstances of this matter,” said Inspector Billy Thompson, from Major Crime Investigation Branch, today.

“One of the considerations for police is whether this death is a homicide.

“We do not believe his injuries were sustained in David Street and we know he was at an address in Asmus Street in the days leading up to this incident.

“Our inquiries not only concern how Mr Trett sustained his head injury, but how and why he came to be in David Street.

“At this time police need to conduct further investigation to determine if the death is suspicious and we believe members of the public may have information that could assist us.”

Police today released images of the blankets that Mr Trett was found wrapped in, and are appealing for the people seen standing near him about 6.25am on Monday 23 April to come forward.

“We have reports from witnesses that up to three people were standing near him, but we don’t know the identity of those people. It is suspected they were wrapping these three blankets around him,” said Inspector Thompson

“I’m appealing for anyone that may have any information about these blankets, or the identity of the three people, to come forward.

Anyone with information that may assist is urged to call Crime Stoppers on 1800 333 000 or report online at crimestopperssa.com.au - you can remain anonymous.