A witness has told Australian homicide detectives they saw a man standing next to murdered New Zealand woman Karen Ristevski's car near where her body was dumped in bushland.
The unidentified man was standing alone with the car in the Mt Macedon area - and came before the much-publicised discovery of her remains off a dirt road between two logs.
The man was seen about 1.5km away from where Ristevski was eventually found, eight months after she left her Avondale Heights home after an argument with husband Borce Ristevski.
The significance of the sighting before the body was discovered "cannot be overstated", a police statement said.
Police have been appealing to the public for sightings of Ristevski's black Mercedes Coupe on June 29 last year, the day she vanished.