Man arrested in relation to cold case double-murder of Melbourne siblings

A man has been arrested in relation to the cold case murders of siblings killed in Melbourne's south-east more than three decades ago.

Man arrested in relation to cold case double-murder of Melbourne siblings

A man has been arrested in relation to the deaths of siblings in Melbourne's south-east more than three decades ago.

Doris McCartney and Ronald Swann were found dead in their Keith Street home in Moorabbin on October 22, 1989.

Homicide Squad detectives arrested a 58-year-old man in Rowville, in the city's outer south-east, this morning after a $1 million reward for information on the siblings' murders was released last week.

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"The Rowville man is currently in police custody being interviewed by detectives," a Victoria Police statement read.

"A further update will be provided when appropriate to do so."

Ms McCartney, 71, and Mr Swann, 69, appeared to have been assaulted.

A friend of Ms McCartney discovered the bodies at the time and contacted police.

The man's arrest follows an "extensive and exhaustive investigation" over the past 31 years.

Detective Inspector Tim Day last month said investigators were determined to solve the case and provide answers to the family even after all this time.

"This is a family that has suffered the loss of two loved ones in the most horrific circumstances, without ever knowing why," he said.

"Over the years we have followed up a number of avenues of enquiry and interviewed several people."

Further lines of enquiry had only emerged recently, Det. Insp. Day said.

Ms McCartney was a widower and her younger brother, a former World War II veteran, had moved into her Keith Street home to support her.

Police have previously said there was no sign of forced entry into the pair's home and nothing had appeared to be taken.

"From all accounts, they lived a quiet life," Det. Insp. Day said.

A number of people had previously been interviewed about the murders, but no one has ever been charged.

Source : 9 News More