A man has been arrested over the 1989 murders of a woman and her brother in suburban Melbourne.
A man has been arrested over the murders of a brother and sister in Melbourne more than 30 years ago.
Doris McCartney, 71, and her brother Ronald Swann, 69, were found dead at their Moorabbin home in October 1989.
A 58-year-old Rowville man was arrested on Thursday, following the offer last week of a $1 million reward to help solve the case.
The man is being interviewed by detectives and no charges have been laid.
Mr Swann was Ms McCartney’s carer as she was hearing impaired. Her husband died in 1979.
“I promised this fella I’d look after her — I failed,” said Doris’ son Ian McCartney, as he pointed to a photograph of Doris and her…