Moment dope-smoking millionaire's grandson arrested after 'knifing her 17 times'

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Moment dope-smoking millionaire
Moment dope-smoking millionaire's grandson arrested after 'knifing her 17 times'

Police bodycam footage captures the moment a cannabis-smoking grandson of a millionaire was arrested after he allegedly stabbed her 17 times leaving her naked body lying in a bloodstained bathtub.

Pietro Addis allegedly knifed his grandmother in the chest and neck when she was naked in the bath during the third pandemic lockdown, a court heard, after he believed she was going to “kill or harm him”.

The then 17-year-old claimed to be suffering from “transient psychosis” during the incident that took place on January 7, 2021.

After suffering so many wounds, his grandmother, millionaire restauranter Sue Addis, 69, died in the bathtub of her £1million home.

Afterwards, the teenager called 999 and said: “I'm calling to turn myself in. There's been a murder.”

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When asked how it had happened, he said “no comment” but when asked how sure he was that his grandmother was dead he told police "100 per cent".

In the video, police officers approach the house and find Addis in the first room. He was arrested on suspicion of murder and when asked said his grandmother was "in the bath".

He answered a few more questions from police with one-word answers after he let himself be cuffed.

Moment dope-smoking millionaire's grandson arrested after 'knifing her 17 times'Then 17-year-old Pierto Addis being arrested after his grandmother was found stabbed to death, naked, in her bathtub

Before he was led away he answered more questions about the weapon used to kill his grandmother.

Lewes Crown Court heard how the owner of Donatello’s and Pinochio’s, a popular Brighton restaurant, had become increasingly concerned over her grandson’s drug use and was worried he was becoming paranoid.

She had wanted to get him professional help and had considered an in-patient psychiatric assessment.

Addis, now 19, admitted to the court he killed his grandmother but denies murder.

Dr Peter Misch, a child and adolescent forensic psychiatrist, told the jury Addis couldn’t think rationally at the time.

He said: “Pietro was suffering from paranoid psychosis at the material time. It is a state of mind that is extremely abnormal so it impairs rational thinking and is often associated with abnormal beliefs that are not fixed in reality.”

Moment dope-smoking millionaire's grandson arrested after 'knifing her 17 times'Sue Addis, popular restaurateur from Brighton (David McHugh / Brighton Pictures)

He said that because the psychotic state was “transient” Addis recovered without any treatment or medication.

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The psychiatrist said he did not think the teenager's mental condition was “drug-induced psychosis” but it was a part of the “bigger picture of his mental health”.

Dr Misch said there was a lot of evidence the teen’s mental health had been declining for some time including reports from family and friends that he was becoming paranoid.

He conceded the nature of the killing was “unusual” and raised concerns, especially that three separate knives were used in the fatal attack.

He added that when he spoke to Addis in prison, the teen understood why he was there but clammed up when he was asked about it.

Dr Misch quoted the teen as saying: "I don't want to talk about it. It was bad. I don't have an explanation."

Moment dope-smoking millionaire's grandson arrested after 'knifing her 17 times'The teen claimed to be suffering from a "transient psychosis" break during the attack and denies murder but admits killing her

The court heard that Addis said: “Before the incident happened my nan was looking at the knives and looking at me. I thought she was going to kill me.

“When I came back she was being weird, looking at me, staring, standing. Not nice. Nan went into the kitchen and she was looking at the knives. She then went into the bathroom.”

It was then he thought about killing her, the court heard.

Mrs Addis was a hugely respected figure in the Brighton business community and her three sons Leo, Stefano and Mikele worked at the restaurants as well.

But her grandson had begun regularly smoking cannabis and taking antidepressants as his behaviour deteriorated and he skipped college and work at the family restaurant.

Moment dope-smoking millionaire's grandson arrested after 'knifing her 17 times'Addis arriving at court as he stands accused of murder (David McHugh / Brighton Pictures)

He had been living with his dad Leo, and his stepmother, but moved out after a big argument, and moved in with his grandmother.

During their time together, Mrs Addis became increasingly concerned about his drug use and wrote to Dr Daphne Keen, who diagnosed his ADHD in 2018.

She told her: “He is suffering paranoia and we are all getting annoyed with him rather than helping. He still says he can't do anything without the Elvanse [his ADHD drug] but with the weed as well he has become impossible to reason with.

“He just wants to sit in his room all day and it is an effort to get him to do anything.”

As well as using cannabis and taking Elvanse, Addis was also taking Xanex, an anti-depressant and Adderall [another ADHD drug]. He also took his grandmother's breast cancer drug.

Moment dope-smoking millionaire's grandson arrested after 'knifing her 17 times'Police officers at the home in Brighton where the grandmother died (David McHugh / Brighton Pictures)

In the days leading up to the alleged murder Addis had also been acting very strangely. He had begun banging on his grandmother's bedroom door at night telling her he loved her.

Rossano Scamardella KC, prosecuting, said: “Pietro Addis is charged with the murder of his grandmother, Susan Addis.

“He admits killing her. His case is that he was suffering from paranoid psychosis at the time, diminishing his responsibility for the killing and he has pleaded guilty to manslaughter to reflect that position.'

“It is the Crown's case that Pietro suffered no such psychosis at the time of the killing, and he in fact bears complete responsibility for the murder of his grandmother.”

He said the court will hear evidence the teenager's behaviour in the months prior to Mrs Addis death 'are likely to be evidence of the effects of smoking cannabis.'

The trial continues.

Jaya Narain

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