This is the moment a sadistic killer prowled the streets before picking a vulnerable stranger at random to beat to death in a horrific murder inspired by the Netflix documentary Don’t F*** with Cats. 

Scarlet Blake, 26, warmed up for murder by filming herself torturing a neighbour’s cat and putting the body in a blender. 

Disturbing audio footage reveals the moment she said ‘well, one day I want to learn how to do this to a person.’ 

Blake singled out Jorge Martin Carreno, 30, at random as he walked home from a night out with work colleagues in Oxford in July 2021.

She was captured on CCTV prowling the city centre looking for a victim while wearing a heavy military-style hooded jacket, face mask and carrying a rucksack.

Scarlet Blake has been convicted of murdering a man who she deliberately targeted before brutally attacking him

Chilling CCTV shows a cat killer obsessed with violence and death walking the streets of a city centre looking for a victim

Prosecutors say Scarlet Blake, 25, was searching the streets of Oxford looking for someone to kill, and found Jorge Martin Carreno, 30, who was unable to find his way home

The footage shows Mr Carreno, a Spanish national, trying to find his way home, and not realising he has dropped his wallet

Eventually Mr Carreno is seen sitting down in Radcliffe Square, where Blake later finds him and shares her vodka with him

Scarlet Blake, 26, warmed up for murder by filming herself torturing a neighbour’s cat and putting the body in a blender

BMW worker Mr Carreno (pictured) had been on a night out when he was approached by Blake

The court previously heard Blake had an ‘extreme interest in death and in harm’ and killed the family pet after watching a Netflix documentary called Don’t F*** With Cats: Hunting An Internet Killer

Prosecutors suggested she was carrying a ‘murder kit’ in her rucksack, including a garrotte and leopard print dressing gown cord, which she rejected.

The trial was told how Mr Martin Carreno was trying to get home when Blake found him sat down in the street. 

The defendant, a sixth form school dropout, persuaded Mr Carreno to follow her to isolated beauty spot Parsons Pleasure overlooking the River Cherwell.

She led her victim to a secluded riverbank where he was hit to the back of the head with a vodka bottle, strangled and then pushed into the River Cherwell where he drowned, Oxford Crown Court heard.

CCTV captured Carreno as he was led to his death but there were no cameras at the riverbank where he died. 

Giving evidence, Blake denied she was looking for a victim that night and instead had gone for a walk because she could not sleep.

She said she walked with Mr Martin Carreno to Parsons Pleasure and left him there alive to go home.

Alison Morgan KC, prosecuting, told the jury: ‘He died because he encountered the defendant on that night’

Bodycam footage from the first police officer on the scene was played at Oxford Crown Court on the third day of the trial, showing when Mr Carreno’s body was recovered from the water

Jurors have been shown CCTV camera footage of Mr Carreno and Blake’s movements around the city centre hours before his death

Four months before the killing Blake live-streamed killing a cat and putting it in a blender having been inspired by the hit Netflix series ‘Don’t F*** with Cats’

Blake stalked and killed 30-year-old Jorge Martin Carreno (pictured) in July 2021

‘I don’t know how he died. I assumed he drowned. It wasn’t something I did. As to how, I still don’t know, I wasn’t there,’ she told the jury.

But Blake was today convicted of murdering Mr Carreno and leaving him to drown.

An empty bottle of vodka was found in the river and the bottle top was nearby on the bank, which had traces of the defendant’s DNA on it. 

Blake – who had filmed herself dissecting and putting a neighbour’s cat in a food blender four months before the cold-blooded murder – showed no emotion as a jury at Oxford Crown Court returned a guilty verdict. 

The court previously heard Blake had an ‘extreme interest in death and in harm’ and killed a cat after watching a Netflix documentary called Don’t F*** With Cats: Hunting An Internet Killer. 

In the programme a man, Luka Magnotta, kills kittens before filming a murder.

Prosecutors said Blake had deliberately set out to kill four months after revelling in the slaughter and dissection of a neighbour’s cat.

Blake had admitted dissecting the animal, removing the fur and skin and placing it in a blender but blamed her former partner Ashlynn Bell. 

While her death obsessed partner Bell watched from her home in the US, Blake live streamed cutting up the cat while it was still alive.

Blake, who told the court she had fallen out with her parents after coming out as a trans woman, had claimed that while she was with Mr Carreno that night, she had left him there alive.

But it took a jury just six hours to reject her defence and find her guilty. 

Blake, who made no reaction as the verdict was read out, will be sentenced on Monday.

Blake claimed Bell (pictured) had been manipulating her and she had been terrified for her safety unless she complied

Police believe Blake would have got away with the sadistic murder had she not later had a bitter falling out with Bell

Speaking after the verdict, Mr Carreno’s family said he was an ‘extraordinary being full of passion and kindness’.

In a tribute released by police, they said: ‘He was distinguished by his incredible affection, friendliness, and his ability to give himself fully to others.

‘Jorge’s innate curiosity and creativity drove him to explore, learn, and experiment tirelessly.

‘He studied electrical engineering, where his dedication and passion were evident in every project he undertook, manifesting in a deep commitment to innovation.

‘He dreamed of a future where he could make a difference with his skills and ambitions, aspiring to create and build a better world.

‘His life was imbued with love for music, photography, reading, and sports.

‘He played the guitar skilfully and radiated kindness and humour among all those lucky enough to have known him.

‘Being a triplet brother, Jorge shared not only blood ties with his brothers but was also their best friend.

‘His friends adored him. He had an affable heart and sense of humour that filled every space with laughter and complicity.

‘The loss of Jorge has left an open wound in the heart of his family but also in all those who had the pleasure of knowing him.

‘This loss feels like a traumatic, devastating blow, leaving a void impossible to fill.’