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Ron Iddles was labelled "Australia's greatest detective" after a career spanning more than 43 years. Ron cracked one of Victoria's oldest unsolved homicides: the murder of Michelle Buckingham.

In Melbourne 1982, six-year old, Bonnie Clarke was murdered in her bed. The case remained unsolved until Bonnie's dad, Denis Clarke, phoned Ron Iddles. Ron knew that in many cold cases 'the answer is in the file.'.

Ron Iddles was the first detective to the scene of a murder that rocked Melbourne to its core - the gunning down of suburban mum Jane Thurgood-Dove in her own driveway, as her kids watched on from the car.

In 1985, Dominic Marafiote mysteriously went missing. The following day, his parents were found shot dead in their home in Adelaide. Could a tip-off from a small-time crim help Ron Iddles solve the crime?

After realising he'd arrested the wrong man over the murder of security guard Slawek Tomczyk, Ron Iddles worked even harder to prove the man's innocence.

Throughout his career, Ron Iddles has been haunted by his first homicide case: the 1980 stabbing murder of bookshop owner Maria James. Could fresh evidence now help solve this cold case?