The son of a wealthy art collector who told a 999 operator ‘I’m a nice boy from Chelsea’ after ‘brutally’ stabbing his live-in housekeeper has been sentenced to indefinite detention in a psychiatric hospital.
Maximillian Bourne, 26, stabbed Joselia Pereira Do Nascimento multiple times at his family’s £20million five-bedroom home in Chelsea, west London, on February 25 last year.
He then tried to strangle her after she was wounded but she managed to lock herself in an ensuite bathroom and phone for help.
On Tuesday, the anniversary of the attack, Bourne was sentenced to an indefinite hospital order with restrictions for the attempted murder of Ms Nascimento.
Judge Gregory Perrins described how the housekeeper had been watching television in her room on the evening of the attack when Bourne knocked on her door and asked her to come outside.
‘He then viciously and brutally attacked her, stabbing her repeatedly with a kitchen knife to her head and her body,’ the judge said.
‘This was without question an utterly terrifying incident for Ms Nascimento.
‘She was attacked without warning and without provocation in the home in which she lived and worked. It is only through sheer good fortune that she survived the attack.’

Maximillian Bourne (pictured), 26, stabbed Joselia Pereira Do Nascimento multiple times at his family’s £20million five-bedroom home in Chelsea, west London, on February 25 last year
Ms Nascimento has permanent scars which cause her ‘intense’ pain and suffers with mental health issues including post-traumatic stress disorder and panic attacks, the judge told Southwark Crown Court.
‘Although Ms Nascimento worked for an extremely wealthy family they have offered her no help, no support and nothing but a single text message while she was in hospital,’ he added.
Mr Perrins said she left her place of work, where she also lived, and has had to rely on charity and the help of others to get by.
‘This must feel cold, unfeeling and unfair at a very difficult time in her life.’
He imposed a hospital order with restrictions, explaining that Bourne will remain in a secure hospital ‘indefinitely’.
‘He will not be released unless a specialist tribunal considers it appropriate.
‘Were he ever to be released it would be under strict conditions and a high degree of oversight,’ the judge said.
Consultant forensic psychiatrist Dr Michael Alcock told the court that Bourne, who suffers from paranoid schizophrenia, has not responded to treatment so far and that there was ‘no guarantee’ he would ever make a full recovery.

Bourne and Ms Nascimento had been the only two people living in the luxury house (pictured) for around three months before the incident
He was deemed unfit to stand trial because of his mental health, and a jury decided that he committed the act charged against him after just minutes of deliberation following a one-day trial.
Bourne and Ms Nascimento had been the only two people living in the house for around three months before the incident, with the defendant’s mother travelling abroad.
He is the son of art dealer and philanthropist Sylvia Bourne and property developer Graham Bourne.
Ms Nascimento told of how Maximillian Bourne knocked on her door and said: ‘Josey, come outside.’
‘He started to attack me with a knife and he didn’t say anything,’ she said.
‘He was holding me by the blouse and he started stabbing my blouse. I was bleeding so much that I was using the blouse to stop the bleeding.
‘When he was stabbing me he eventually let go of the knife and started to strangle me around the neck with both hands.’
Ms Nascimento managed to get free and lock herself in a bathroom before retrieving her phone to call for help, telling one of her friends that she was dying.

At Southwark Crown Court (pictured) Bourne was sentenced to an indefinite hospital order with restrictions
She also recorded a goodbye message to her daughter on her phone, believing she would never speak to her again.
She tried to breathe quietly in the hope that Bourne would think she was dead.
‘He then said: “Open the door”, which he repeated and was knocking,’ Ms Nascimento continued.
‘I could feel my blood going down my body. I was losing blood.
‘I told him I have a daughter and I pleaded with him to stop.
‘He told me that it was because I was evil, but we had never had an argument or a disagreement.’
David Smith, prosecuting, previously said: ‘The offence took place at Mr Bourne’s home address, which was The Court House at 9 Justice Walk, Chelsea.
‘Joselia Pereira Do Nascimento was the housekeeper at 9 Justice Walk, she also lived at the address.’
Ms Do Nascimento had worked at the property for around a year and had moved in to the property and was living there for about eight months prior to the incident, said Mr Smith.
‘Her employer was Mr Bourne’s mother, Sylvia Bourne. She travelled a lot and was often away as a consequence.
As a result, Ms Do Nascimento and Mr Bourne would often be alone in the property for several nights at a time.’
She said Bourne had not been behaving normally in the lead-up to the incident, recounting how he had been sleeping on the bathroom floor and talking to himself.
The defendant made a 999 call after the event, giving his name and telling the operator: ‘There is this demon woman in my house and I stabbed her.
‘I’m a nice boy from Chelsea. You’re just going to have to please not bring a gun. I do have blood all over me.’
Bourne also went to his uncle’s house after the incident, telling him from outside the front door: ‘I’m a good person but I had to stab the maid because she was full of demons.’
Police body-worn camera footage recorded him apologising repeatedly after his arrest and telling officers: ‘It was the devil.’
Bourne is the great great grandson of Epitácio Pessoa who served as the President of Brazil from 1919 to 1922.
Sylvia Bourne’s father, Carlos Alberto Pessoa Pardellas, was a prominent diplomat who served as an ambassador to the UK.