A witness has spoken of a "sick feeling" she felt when she was followed by a man in a car near murdered Melbourne teenager Prue Bird's home just prior to the 13-year-old's disappearance.
The acquaintance of Prue, who can only be identified as "Witness M", told Victoria's Supreme Court on Wednesday that she had been in the vicinity of Prue's Glenroy home during the Christmas school holidays when she was followed by a man driving in a light-blue, square-looking car.
The man, who had fair hair and was wearing a blue jumper and had a big nose, sounded the car horn and waved at her, she said.
"It was significant because he turned around and came back, and because of the feeling I got at the time," she said. "For some reason I had that sick feeling."
The court heard she later discussed the man's appearance with Prue and he sounded like the same man who had been to Prue's house earlier that day looking for someone named Daniel.
When Prue told him no one by that name lived there, the witness said the man left the address.
She said she gave a statement to police two months after Prue disappeared from her Justin Avenue home but did not mention details of the man's appearance.
But she added that the man had "always" been in her head since that day.
She said when she saw a newspaper article published in January 2010 about Prue, "I instantly felt the sick feeling I had on the day I was followed by the man."
She said that on seeing a photo of Leslie Alfred Camilleri, who was identified in the article as a key suspect in Prue's murder, she knew "in my heart" it was the same man.
Police believe Prue was killed between the day she was abducted, February 2, 1992, and nine days later when Camilleri was arrested interstate on outstanding warrants.
Camilleri, 43, is already serving life without parole for the 1997 murders of Bega schoolgirls Lauren Barry, 14, and Nichole Collins, 16.
While he pleaded guilty late last year to Prue's murder, the prosecution and defence disagree on the circumstances of the 13-year-old's murder and whether or not Camilleri acted alone.
Prue's body has not been found and while Justice Elizabeth Curtain urged Camilleri on Monday to "exercise his conscience" and provide information on her whereabouts, he has so far not done so.
The contested pre-sentence plea hearing continues.