A grandmother who allegedly stabbed her son’s partner and a 10-year-old boy in a roadside rampage shared a home with the woman she is accused of attacking.

Julie Ann Williams, 59, lived with her builder son Andrew Williams and his 27-year-old girlfriend Kellie Parkes in a house south of Sydney at Horsley, near Wollongong. 

On Wednesday evening, Williams allegedly stopped Ms Parkes on West Dapto Rd in Wongawilli, before she got out of her own car and approached her vehicle, which sparked a heated confrontation.

The older woman then allegedly pulled out a knife, leaned through the front passenger window of Ms Parkes’s car and stabbed a 10-year-old boy in the neck.

When Ms Parkes got out of her vehicle, Williams allegedly stabbed her in the abdomen. 

Ms Parkes and the boy suffered serious stab wounds and were treated at the scene by paramedics about 6pm. 

The boy was airlifted to Sydney and Ms Parkes was taken to Wollongong Hospital.

A three-year-old boy who was also in Ms Parkes’s car escaped the incident unharmed and was in the care of a family member.

A grandmother who allegedly stabbed her son's partner, Kellie Parkes, and a 10-year-old boy in a roadside rampage shared a home with the woman she is accused of attacking. Ms Parkes is pictured

A grandmother who allegedly stabbed her son’s partner, Kellie Parkes, and a 10-year-old boy in a roadside rampage shared a home with the woman she is accused of attacking. Ms Parkes is pictured

Julie Ann Williams lived with her builder son Andrew Williams (above) and his 27-year-old girlfriend Kellie Parkes in a house south of Sydney at Horsley, near Wollongong

Julie Ann Williams lived with her builder son Andrew Williams (above) and his 27-year-old girlfriend Kellie Parkes in a house south of Sydney at Horsley, near Wollongong

The alleged attack took place just a three-minute drive from where Williams, her son and Ms Parkes lived together.

Police arrested Williams at the Horsley house about 6.30pm on Wednesday and seized her car from the premises later that night.  

Wiliiams appeared in Wollongong Local Court on Thursday afternoon charged with two counts of wounding with intent to cause grievous bodily harm.

She watched the brief proceedings via audio-visual link from Wollongong police station and did not apply for bail.

Williams leant forward to listen and when the matter was adjourned told magistrate David Williams, ‘Thank you, Your Honour.’

She is the subject of an interim apprehended violence order protecting Ms Parkes with conditions which include not going within 500m of the family home. 

When asked if she comprehended the restriction, Williams said: ‘Yes, I understand.’

Neighbours said Williams lived in a flat behind the Horsley house, while her son lived in the front and Ms Parkes spent most of her nights there.

The alleged attack took place just a three-minute drive from where Williams, her son and Ms Parkes lived together at his house in Horsley

The alleged attack took place just a three-minute drive from where Williams, her son and Ms Parkes lived together at his house in Horsley

Neighbours said Williams lived in a flat (above) behind the Horsley house, while her son lived in the front and Ms Parkes spent most of her nights there

Neighbours said Williams lived in a flat (above) behind the Horsley house, while her son lived in the front and Ms Parkes spent most of her nights there

‘She (Ms Parkes) is pretty much here all the time,’ one neighbour told Daily Mail Australia.

‘I always hear the son and his mum arguing a lot. Not really the girlfriend and the mum.’ 

Another neighbour said of Ms Parkes: ‘She pretty much lives here.’

Of Williams, that neighbour said, ‘I didn’t have much to do with her. You wouldn’t pick it.’

Detective Chief Inspector Brad Ainsworth said the three-year-old boy was ‘not injured, not touched and not approached’.

The 10-year-old boy and Ms Parkes’s condition had improved and they were ‘in no danger and are progressing well’, he said.

Detective Chief Inspector Ainsworth thanked members of the public who had rushed to help Ms Parkes and the boy and said it was not clear what sparked the alleged attack.

‘Really, are there any words to describe what [Williams] is alleged to have done – it’s just, it’s crazy,’ he said.

Williams will return to court on August 6 when she will be represented by Legal Aid. 

Police have urged anyone with information, CCTV or dashcam footage in relation to the alleged stabbing to contact Crime Stoppers on 1800 333 000.

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