New person of interest in Marilyn Wallman cold case

Mar 25, 2022

Fifty years after the mysterious disappearance of 14 year old Marilyn Wallman in Mackay, her brother believes he has discovered a possible person of interest in the case that has baffled police for decades.

On the morning of March 21, 1972, Marilyn left her family home headed for the Rural Youth Hall to catch the bus to school.

Ten minutes later, Marilyn’s two younger brothers left home headed on the same journey. While riding along Wallman Road, the two brothers found Marilyn’s abandoned bicycle along with her open school bag with books strewn across the road.

An extensive search was conducted by police and members of the community over the following days but Marilyn was never located.

Police have conducted extensive investigations and probed several lines of enquiry in the 50 years since Marilyn went missing, making the case one of Queensland’s oldest unsolved murders.

In 1974, a bone fragment was located near McGregor Creek at Mount Martin. Following advancements in DNA technology in 2001, the Central Coroner concluded the fragment did belong to Marilyn Wallman.

The case became the subject of a full homicide cold case review in 2015.

Marilyn’s older brother David Wallman has now revealed to The Courier-Mail that he has become aware of a person of interest related to his sister’s disappearance.

“It’s gone to the detectives of course,” he said.

“Mum still feels like it happened yesterday.”

David also revealed that police have not ruled this particular person of interest out in regards to the investigation.

David’s discovery comes as Marilyn’s family call for a $1 million reward for information that will hopefully find the person responsible for Marilyn’s disappearance and alleged murder.

“For this case and where we are, it’s something that could trigger somebody to bring forward that little bit of information and help solve this case,” David said.

In 2018 Minister for Police and Corrective Services Mark Ryan approved a significant increase in the reward, from 250,000 to $500,000.

At the time Ryan said the increased reward money marked “a significant milestone for this investigation.”

“I have been advised it is the first time a government funded increase to an existing reward has been granted,” he said.

“Police believe this is a necessary step for their investigation and we all hope it will help bring the answers needed by Marilyn’s family.

“This case has remained an open investigation for 46 years with several lines of enquiry but no definitive answers.

“But more importantly it has remained top of mind for a family who deserve to know what happened to Marilyn.”

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