The former lover and teenage babysitter of Chris Dawson will be among the key witnesses to take the stand to give evidence against the now 70-year-old former PE teacher as he faces trial over the alleged murder of his wife, Lyn Dawson.
Dawson was flown to Sydney on Dec. 6. where he is expected to be formally charged with murder almost 37 years after the disappearance of Ms Dawson on the northern beaches.
The Daily Telegraph reports Joanne Curtis, the teenage lover who moved in with Dawson days after Lynette disappeared, has provided fresh information to police which led to Dawson's arrest in Queensland on Dec. 5.
A senior police source told The Daily Telegraph a string of old and new witnesses helped "tie the pieces of the puzzle together".
The Australian further reports Bev McNally, another former babysitter for the Dawson's, has also given a statement to police, along with a third woman who recently met with detectives for the first time.
"They corroborate Joanne's evidence," a senior police source said.
Lynette Dawson's body has never been found.
Police now believe she was buried in bushland in Sydney's north, despite a recent excavation of her former Bayview home as police searched for evidence.
McNally, who frequently looked after the couple's two young daughters Shanelle and Sherryn, told the Manly Daily: "It feels surreal...His daughters have had their world re-shattered. We have to feel for them too."
Ms McNally said she was only speaking to the older Dawson girl, Shanelle, last night and had texted her this morning following news of her father’s arrest.
“She’s coping. She was trying to prepare herself but nothing prepares you for this,” Ms McNally told the Telegraph.
Detectives from the NSW homicide squad began reinvestigating her suspected murder in 2015, calling on the Office of the Director of Public Prosecutions to review their brief of evidence in April this year.
Police spent in excess of $500,000 on digging in the grounds of the couple’s former Bayview home in the hope of finding her body or any new evidence, but nothing was found.