MURDERED Leeton school teacher Stephanie Scott was allegedly raped by accused killer Vincent Stanford before her death, it was revealed in court yesterday.

Stanford, 24, sat emotionless behind a camera when he appeared in Griffith Local Court via video link to face charges of murder and aggravated sexual assault.

He spoke only to confirm his name as an additional charge relating to her sexual assault was read out to a packed court.

Ms Scott vanished after going to the high school where she taught in Leeton to prepare lesson plans on the Easter school holidays.

She had been due to marry her fiance Aaron Leeson-Woolley five days later near her home town of Canowindra.

After a desperate three-day search, Stanford, a cleaner at the high school, was arrested at his Leeton home and charged with murdering the much-loved English and drama teacher.

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Her burnt remains were found two days later, on the eve of her wedding, in the Cocoparra National Park, 70km away, after an extensive air and land search.

Stephanie’s parents Bob and Merrilyn Scott yesterday attended court for the first time to face their daughter's alleged killer.

Police will allege Stanford sexually assaulted Ms Scott some time between 1.40pm and 2pm on Sunday, April 5, the day she was murdered.

The prosecution’s request for a three-month adjournment to prepare the brief of evidence was granted.

The court heard Stanford had not applied for legal assistance until yesterday.

He did not apply for bail and it was formally refused.

Leeton locals took to social media to support the Scott family after details of the sexual assault charges emerged.

Stephanie’s sister, Kim Scott, posted a photo of her sister and Mr Leeson-Woolley cutting a cake together.

“The only way I will ever choose to remember you Stephanie, happy, full of life and in love,’’ she wrote.

Stanford moved to Leeton with his mother and brother after relocating from The Netherlands 15 months ago.

The case will return to court on September 30.