Watch the police address the country about his arrest.
“A 70-year-old man has been arrested this morning shortly before 8 o’clock in relation to the murder of Lyn Dawson,” confirmed Detective Chief Inspector Chris Olen.
“He’s been taken to Southport where he will be charged. NSW police will seek an extradition.”
The Daily Telegraph reported Curtis, the teenage lover who moved in with Dawson days after Lynette disappeared, was instrumental with giving the police information that led to Dawson's arrest in Queensland on Wednesday.
"She is one of a raft of witnesses, both old and new, who police said helped 'tie the pieces of the puzzle together'."
They now believe her body is buried in a lonely bush grave.
“They corroborate Joanne’s evidence,” a senior police source said of the fellow witnesses.
Dawson's former babysitter Bev McNally will also give evidence.
Ms McNally said the arrest was a "happy day, but also a sad one."
"It feels surreal... His daughters have had their world re-shattered. We have to feel for them too," she told the Manly Daily.
On Jan. 9, 1982, Lynette Dawson, a 33-year-old wife and mother of two little girls, went missing and she has never been seen since.
Chris has steadfastly maintained his innocence, saying the mother of his children, Shanelle, then 4, and Sherryn, 2, simply ran away.
At the time, Chris, a school teacher, was having an affair with his student Joanne Curtis.