Explosive details emerge as to why a mother stabbed her private school graduate son

A hysterical mother screamed ‘he was going to hurt me’ moments after stabbing her private school graduate son in the head, a Sydney court has heard.

Samantha Palmer, 55, has pleaded guilty to reckless injury in the November 20 incident in which she armed herself with a butcher knife.

The evening started with her and husband James Tilley relaxing quietly with a drink on their porch, but would later spiral out of control, court documents say.

Samantha Palmer, 55, was arrested in a black sundress and pearl earrings (pictured) after the November 20 incident

Ms. Palmer has since pleaded guilty to reckless injury at the court hearing she told officer Mr "threaten her"

Ms Palmer has since pleaded guilty to reckless injury in court, telling Agent Ball “threatened” her.

Her son Hugo Ball, 23, had moved back into their Bellevue Hill property three weeks earlier and had been out at a friend’s birthday party at Watson’s Bay Hotel.

Palmer’s daughter and Mr. Ball’s sister, Daphne Palmer-Ball, came home about 10 p.m. and went to her room.

Mr Tilley then went to bed about half an hour later, leaving Palmer alone in the front, according to court documents.

Around midnight, Mr. Ball arrived and spoke to his mother at the front of the house, court documents state.

According to the agreed upon facts, Mrs. Palmer-Ball and Mr. Tilley awoke at about 1:30 am to the sound of Mr. Ball screaming as Palmer stabbed him repeatedly.

Mr Tilley used a tea towel on Mr Ball’s wound and called triple zero as Mrs Palmer-Ball bundled her mother into a separate room, the documents say.

Ball (pictured) pleaded guilty to willful damage in a Sydney court in February after coming to his father's $5.5 million dollar Paddington Terrace and destroying some of his plantation shutters

Ball (pictured) pleaded guilty to willful damage in a Sydney court in February after coming to his father’s $5.5 million dollar Paddington Terrace and destroying some of his plantation shutters

The family's mansion in Bellevue Hill - an upscale suburb in eastern Sydney - was reportedly marred by bloodshed on Saturday

The family’s mansion in Bellevue Hill – an upscale suburb in eastern Sydney – was reportedly marred by bloodshed on Saturday

Palmer repeatedly told her “he threatened me, he would hurt me,” the court was told.

“You’re in as much trouble as he is… you just stabbed Hugo,” she replied.

Police arrived shortly after finding Mr. Ball at the front door, still bleeding profusely from a wound to his right shoulder and a 9-inch knife on the nearby porch.

Palmer repeated the plea for self-defense to officers, saying, “He’s threatening me, he’s hurt people, he’s going to hurt me,” the court heard.

When escorted to the police station, officers could see no apparent physical injuries from Palmer.

Mr Ball was treated in hospital for stab wounds to his neck and shoulder.

Mrs. Palmer (center) is arrested by the police while Mr. Ball was treated in the hospital

Mrs. Palmer (center) is arrested by the police while Mr. Ball was treated in the hospital

Mr Ball has also had two problems with the police since the November 20 attack.

In the weeks that followed, while experiencing withdrawal symptoms, Ball went on a rampage at his father’s house in late December.

He pleaded guilty to willful damage in a Sydney court in February.

He had gone to his father’s $5.5 million dollar Paddington Terrace and destroyed some of his plantation shutters.

According to court documents, the attack took place after the Scot’s father, former Cardno CEO Ian Ball, called Hugo’s doctor on Boxing Day to report that his son had been drinking.

Ball's mother Samantha (top left) is accused of stabbing her son with a 12 inch kitchen knife in November (pictured with Mr Ball and his biological father Ian Ball)

Ball’s mother Samantha (top left) is accused of stabbing her son with a 12 inch kitchen knife in November (pictured with Mr Ball and his biological father Ian Ball)

Mr Ball is pictured above on the shoulders of a buddy at a music festival in 2017. A court heard he had drug problems after graduating from the prestigious Scots College in Sydney Sydney.

Mr Ball frolic in the sun with friends, above

Mr Ball is pictured above on the shoulders of a buddy at a music festival in 2017. A court heard he had drug problems after graduating from the prestigious Scots College in Sydney Sydney.

Ball was not allowed to drink while taking a diazepa medication known as Valium. When Hugo went to the doctor the next day for a prescription, he was refused the drug.

Mistakenly assuming that his father had medicines lying around his house, Ball turned up outside his father’s house on the morning of Dec. 27, the documents say.

“The suspect began pounding and screaming aggressively on the front door,” according to a fact sheet filed in court.

“The accused went to the shutters … and damaged some of them, breaking them and rendering them useless.”

As part of his plea, police withdrew initial allegations of a more extensive frenzy that agents expressed in court documents late last year.

Months later, he was arrested around 2:30 p.m. Tuesday by Eastern Suburbs Police Area Command in a unit in Paddington, following an investigation into an alleged theft at Bondi Junction on April 17.

He was taken to Waverley Police Station, where he was charged with stealing from a person.

Ian Ball (pictured) previously told Downing Center Local Court that his relationship with his son was 'generally good'

Ian Ball (pictured) previously told Downing Center Local Court that his relationship with his son was ‘generally good’

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