The family of Chris Dawson think missing woman Lynette Dawson may have been killed by Ivan Milat.
Dawson's family made a chilling suggestion that the infamous backpacker murderer may be responsible for the death of Lynette, who vanished in 1982.
'Milat … is alleged to have killed several women around the same time and in an area Lyn was seen,' Chris Dawson’s brother Peter Dawson told 7 News.
Milat was convicted in 1996 of a spate of serial killings across NSW in the 1980s and 1990s.
Peter Dawson pointed out that Milat's victims were hitchhikers and that 'Lyn didn't drive'.
But Clive Small, the former assistant police commissioner who led the Milat investigation, said it is unlikely Milat was responsible for Lynette's death.
'I would suggest (the chance) is very much next to zero,' he said.
Chris Dawson was arrested earlier this month and charged with murdering his wife Lynette.
His lawyer confirmed Dawson will be pleading not guilty to the homicide charge.
The former high-school teacher and his schoolgirl lover were the focus on a critically acclaimed podcast, The Teacher's Pet.