A young woman who became a hate figure across Australia after attacking an elderly woman has died aged 23.

Cori Glencross insisted she had an epileptic fit and was not in control of her body when she started kicking the pensioner outside a shopping centre in Geelong, Victoria in April.

Her mother has revealed she suffered a seizure and died late last month, having tried to 'right the wrong' before her death.

She had been trying to turn her life around, but was sadly suffering with debilitating epilepsy which often caused her to have up to 15 seizures a day.

On one occasion, she even fell unconscious in the shower, but was still hoping to forge a career in hospitality.

Cori Glencross (pictured), 23, allegedly attacked the unnamed woman at a bus top outside a shopping centre in Geelong, Victoria on Tuesday afternoon

She had been diagnosed with an intellectual disability shortly before she died, and was hoping to finally receive help.

They young woman was caught on camera as she kicked the unnamed 75-year-old at a bus stop - and the video went viral.

Casey Donald, Ms Glencross' mum, said she was already receiving 'vile messages', even after her daughter's death.

'She fully accepted that her behaviour at that time was wrong and she was almost at the point where her court cases were going to be dealt with,' Ms Donald told the Sunday Herald Sun.

'She put her hand up and said "I screwed up" but she was never going to be left alone.

'Even in death people are saying things like "rot in hell" … I have received some terrible, vile messages.'

She was filmed assaulting the elderly woman on April 16, with footage letting go viral online.

Ms Glencross, who was on bail at the time of the alleged offence, said in a police interview she was acting in self defence because the woman allegedly threatened her with a needle.

She appeared at Geelong Magistrates' Court back in April charged with affray, unlawful assault and assault by kicking.

'When I was getting her off me I had a seizure and couldn't control my body and it looks like it was on purpose but it wasn't on purpose,' she said in court according to the ABC.

She pleaded guilty to the offences and was awaiting sentencing.

Ms Glencross allegedly told the elderly woman (pictured during the attack) that it was 'not nice to smile' and said she should 'get a rope and kill herself'

The 23-year-old received abusive messages as a result of the attack on the elderly woman in April (pictured)

This was after brazenly requesting her identity to be hidden during the trial, saying it put her 'personal safety at risk'.

Ms Donald said her daughter had battled with epilepsy for most of her life.

A witness to the incident, Caitlyn Brooks, told Daily Mail Australia at the time that Ms Glencross had told the woman that it was 'not nice to smile' before moving toward her.

After a brief verbal exchange between the two women, Ms Glencross approached the elderly woman and asked her if she 'wanted to start her' before shoving her against the glass window behind her.

The video then showed her appear to yank the woman by the hair and pull her to the ground.

A bystander could be heard saying 'she's just an old lady'.

The defenseless older woman was then kicked twice as she was lying on the ground before a witness intervened.