A cat killer who filmed herself torturing the animal before putting it in a blender has been jailed for life for murdering a man four months later.
Scarlet Blake, 26, appeared at Oxford Crown Court on Monday after being found guilty last week.
Warning: This story contains descriptions that readers may find distressing
Blake live-streamed the dissection of a family pet after watching a Netflix documentary called Don’t F*** With Cats, in which Luka Magnotta kills kittens before filming a murder.
Prosecutors said Blake had a “fixation with violence” and found Jorge Martin Carreno, 30, while searching the streets of Oxford looking for someone to kill in the early hours of 25 July 2021.
The body of the BMW factory worker, a Spanish national who was walking home alone after a night out with colleagues, was found in the River Cherwell at Parson’s Pleasure around 24 hours later.
Judge Mr Justice Chamberlain KC described the killer, who is transgender, as having an “obsession with harm and death” as he sentenced her to a minimum term of 24 years in prison.
He told Blake: “The decision to kill was entirely yours. You were completely indifferent to this suffering.”
The judge said he could not be sure of the exact method Blake used to kill Mr Martin Carreno but said the murder was “the culmination of a plan” Blake had been formulating for months.
The trial heard a murder investigation was launched two years later when Blake’s former partner Ashlynn Bell, who lives in the US, told detectives she had confessed to killing Mr Martin Carreno using a homemade garrote.
Image: Jorge Martin Carreno. Pic: Family handout
Blake pleaded guilty to a charge of criminal damage over the killing of the cat, but denied murdering Mr Martin Carreno by inflicting blows to his head before trying to strangle him and then putting him in the river.
Four months before his death, she used food and a crate to capture a cat and take it to her home, where she killed it.
‘Grotesque act of cruelty’
Mr Justice Chamberlain said she had carried out “a grotesque act of cruelty” by filming herself torturing the cat before killing it.
In the video, in which Blake dissects the animal, removing the fur and skin, she says: “Here we go my little friend. Oh boy, you smell like shit. I can’t wait to put through the blender.”
Image: Blake filmed herself killing a cat. Pic: TVP
Prosecutors said it showed she had a “disturbing interest in what it would be like to harm a living creature”.
“You suspended the cat by its neck, using a ligature made from ribbon,” the judge said.
“But, although you strangled it, you made sure that it remained alive for at least three minutes, during which it endured intense pain.”
Blake cut the animal’s heart out and kept it “as a memento,” the judge said. After she had killed the cat, Blake continued dissecting the animal before placing it in a blender.
She later “boasted” about her actions and spoke of “her desire to open up a person like her ‘little cat friend’,” the court heard.
“It was an interest that went beyond mere fantasy,” Alison Morgan KC told jurors, who were also shown videos of Blake and a partner engaging in consensual strangulation with ligatures.
“She described herself to others as being someone who derived sexual gratification from the thought of violence and the thought of death,” said the prosecutor.
‘Jorge’s life will be remembered’
Speaking shortly after the sentencing, Detective Superintendent Jon Capps condemned the murder of Mr Martin Carreno as a “barbaric and chilling act” that had been done with “total disdain for life”.
He also paid tribute to Mr Martin Carreno’s family for the “enormous dignity they have shown throughout this ordeal.”
Det Supt Capps said: “They [the family] have put enormous faith in my team. They’ve had to come to terms with this not just this being a murder, but the character and nature of this defendant served to only compound the grief they feel.
“It is Jorge’s life that will be remembered over and above the acts of this defendant.”
He added that the jury will receive support to deal with the graphic evidence they were exposed to during the trial.
‘Fixation with violence’
CCTV footage shown during the trial featured Mr Martin Carreno trying to find his way home, while Blake walked the streets, wearing a facemask and distinctive combat-style jacket with a hood over her head, while carrying a rucksack.
“He died because he encountered the defendant on that night,” said Ms Morgan. “He died because he met a person who had a fixation with violence and with knowing what it would feel like to kill someone.”
Blake, who was born in China before coming to the UK aged nine, blamed Ms Bell for making her kill the cat.
She said Mr Martin Carreno was still alive when she left him at the riverbank, and that she had made up details of killing him to please her ex-partner after seeing his death in the news.
Mr Martin Carreno’s family paid tribute to “an extraordinary being full of passion and kindness”. He was one of three triplet brothers.
They said in a statement: “Today, his absence leaves a deep wound in our hearts. His life was stolen, cutting short his projects and dreams.”
Mr Martin Carreno’s mother added that her son “aspired to build a better world” and was an “incredibly good person”.
It is understood Blake will serve her sentence in a men’s prison.
Emmanuel Macron has said the UK and France have a “shared responsibility” to tackle the “burden” of illegal migration, as he urged co-operation between London and Paris ahead of a crunch summit later this week.
Addressing parliament in the Palace of Westminster on Tuesday, the French president said the UK-France summit would bring “cooperation and tangible results” regarding the small boats crisis in the Channel.
Image: King Charles III at the State Banquet for President of France Emmanuel Macron. Pic: PA
Mr Macron – who is the first European leader to make a state visit to the UK since Brexit – told the audience that while migrants’ “hope for a better life elsewhere is legitimate”, “we cannot allow our countries’ rules for taking in people to be flouted and criminal networks to cynically exploit the hopes of so many individuals with so little respect for human life”.
“France and the UK have a shared responsibility to address irregular migration with humanity, solidarity and fairness,” he added.
Looking ahead to the UK-France summit on Thursday, he promised the “best ever cooperation” between France and the UK “to fix today what is a burden for our two countries”.
Sir Keir Starmer will hope to reach a deal with his French counterpart on a “one in, one out” migrant returns deal at the key summit on Thursday.
King Charles also addressed the delegations at a state banquet in Windsor Castle on Tuesday evening, saying the summit would “deepen our alliance and broaden our partnerships still further”.
Image: King Charles speaking at state banquet welcoming Macron.
Sitting next to President Macron, the monarch said: “Our armed forces will cooperate even more closely across the world, including to support Ukraine as we join together in leading a coalition of the willing in defence of liberty and freedom from oppression. In other words, in defence of our shared values.”
In April, British officials confirmed a pilot scheme was being considered to deport migrants who cross the English Channel in exchange for the UK accepting asylum seekers in France with legitimate claims.
The two countries have engaged in talks about a one-for-one swap, enabling undocumented asylum seekers who have reached the UK by small boat to be returned to France.
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Britain would then receive migrants from France who would have a right to be in the UK, like those who already have family settled here.
The small boats crisis is a pressing issue for the prime minister, given that more than 20,000 migrants crossed the English Channel to the UK in the first six months of this year – a rise of almost 50% on the number crossing in 2024.
Image: President Macron greets Commons Speaker Sir Lindsay Hoyle at his address to parliament in Westminster.
Elsewhere in his speech, the French president addressed Brexit, and said the UK could not “stay on the sidelines” despite its departure from the European Union.
He said European countries had to break away from economic dependence on the US and China.
“Our two countries are among the oldest sovereign nations in Europe, and sovereignty means a lot to both of us, and everything I referred to was about sovereignty, deciding for ourselves, choosing our technologies, our economy, deciding our diplomacy, and deciding the content we want to share and the ideas we want to share, and the controversies we want to share.
“Even though it is not part of the European Union, the United Kingdom cannot stay on the sidelines because defence and security, competitiveness, democracy – the very core of our identity – are connected across Europe as a continent.”
The Princess of Wales and celebrities attended the King’s star-studded state banquet on Tuesday, where Emmanuel Macron paid tribute to the late Queen Elizabeth II.
On the first day of Mr Macron’s state visit, King Charles gave a toast in French and said the three-day trip was another chance to “celebrate a deep and enduring friendship”.
“What’s possibly the most remarkable thing is the way in which the speciality of one country is part of the story of the other,” the monarch said.
“For centuries, our citizens have admired one another. We’ve made each other laugh, and we’ve imitated one another.”
Image: The Prince and Princess of Wales at the State Banquet. Pic: PA
Image: The banquet hall at Windsor Castle. Pic: PA
Image: The King makes a speech at a banquet at Windsor Castle. Pic: PA
Image: King Charles looks at Emmanuel Macron at a state banquet at Windsor Castle. Pic: PA
After the King’s speech, Mr Macron told him France had a “real affection for your mother” Queen Elizabeth II, adding he believed the feeling was “reciprocal”.
“She was your queen,” he said. “To us, she was the Queen.”
He capped off his speech – which repeated his calls for closer relations that he made earlier in the Palace of Westminster – by saying: “In honour of the United Kingdom, of this entente amico that unites our two fraternal peoples in an unwavering alliance.
“Long live the United Kingdom of Great Britain and Northern Ireland! Long live France!”
Image: Emmanuel Macron gives a speech at a state banquet at Windsor Castle. Pic: PA
The Princess of Wales also made her first appearance at a state banquet in almost two years, sitting next to the French president.
Image: Emmanuel Macron and Kate, the Princess of Wales, share a toast. Pic: PA
Also in attendance were Sir Mick Jagger, frontman of The Rolling Stones, who was joined by his fiancee Melanie Hamrick, and Sir Elton John, who was accompanied by his husband David Furnish.
Image: Mick Jagger taking his seat at the state banquet at Windsor Castle. Pic: PA
Image: Elton John and David Furnish at the state banquet at Windsor Castle. Pic: PA
Meanwhile, it was announced that the Bayeux Tapestry, depicting the Norman conquest of England, will return to the UK for the first time in more than 900 years, and will feature in an exhibition from September 2026 to July 2027.
Mr Macron joked ahead of the state banquet that negotiations to bring the 11th-century artwork back to the UK took longer “than all the Brexit tests”. Talks on a loan had started as early as 2018.
At least 13 people may have taken their own lives after being accused of wrongdoing based on evidence from the Horizon IT system that the Post Office and developers Fujitsu knew could be false, the public inquiry has found.
A further 59 people told the inquiry they considered ending their lives, 10 of whom tried on at least one occasion, while other postmasters and family members recount suffering from alcoholism and mental health disorders including anorexia and depression, family breakup, divorce, bankruptcy and personal abuse.
Writing in the first volume of the Post Office Horizon IT Inquiry report, chairman Sir Wyn Williams concludes that this enormous personal toll came despite senior employees at the Post Office knowing the Horizon IT system could produce accounts “which were illusory rather than real” even before it was rolled out to branches.
Sir Wyn said: “I am satisfied from the evidence that I have heard that a number of senior, and not so senior, employees of the Post Office knew or, at the very least, should have known that Legacy Horizon was capable of error… Yet, for all practical purposes, throughout the lifetime of Legacy Horizon, the Post Office maintained the fiction that its data was always accurate.”
Referring to the updated version of Horizon, known as Horizon Online, which also had “bugs errors and defects” that could create illusory accounts, he said: “I am satisfied that a number of employees of Fujitsu and the Post Office knew that this was so.”
The first volume of the report focuses on what Sir Wyn calls the “disastrous” impact of false accusations made against at least 1,000 postmasters, and the various redress schemes the Post Office and government has established since miscarriages of justice were identified and proven.
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3:28
‘It stole a lot from me’
Recommendations regarding the conduct of senior management of the Post Office, Fujitsu and ministers will come in a subsequent report, but Sir Wyn is clear that unjust and flawed prosecutions were knowingly pursued.
“All of these people are properly to be regarded as victims of wholly unacceptable behaviour perpetrated by a number of individuals employed by and/or associated with the Post Office and Fujitsu from time to time and by the Post Office and Fujitsu as institutions,” he says.
What are the inquiry’s recommendations?
Calling for urgent action from government and the Post Office to ensure “full and fair compensation”, he makes 19 recommendations including:
• Government and the Post Office to agree a definition of “full and fair” compensation to be used when agreeing payouts • Ending “unnecessarily adversarial attitude” to initial offers that have depressed the value of payouts, and ensuring consistency across all four compensation schemes • The creation of a standing body to administer financial redress to people wronged by public bodies • Compensation to be extended to close family members of those affected who have suffered “serious negative consequences” • The Post Office, Fujitsu and government agreeing a programme for “restorative justice”, a process that brings together those that have suffered harm with those that have caused it
Regarding the human impact of the Post Office’s pursuit of postmasters, including its use of unique powers of prosecution, Sir Wyn writes: “I do not think it is easy to exaggerate the trauma which persons are likely to suffer when they are the subject of criminal investigation, prosecution, conviction and sentence.”
He says that even the process of being interviewed under caution by Post Office investigators “will have been troubling at best and harrowing at worst”.
The report finds that those wrongfully convicted were “subject to hostile and abusive behaviour” in their local communities, felt shame and embarrassment, with some feeling forced to move.
Detailing the impact on close family members of those prosecuted, Sir Wyn writes: “Wives, husbands, children and parents endured very significant suffering in the form of distress, worry and disruption to home life, in employment and education.
“In a number of cases, relationships with spouses broke down and ended in divorce or separation.
“In the most egregious cases, family members themselves suffered psychiatric illnesses or psychological problems and very significant financial losses… their suffering has been acute.”
The report includes 17 case studies of those affected by the scandal including some who have never spoken publicly before. They include Millie Castleton, daughter of Lee Castleton, one of the first postmasters prosecuted.
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1:34
Three things you need to know about Post Office report
She told the inquiry how her family being “branded thieves and liars” affected her mental health, and contributed to a diagnosis of anorexia that forced her to drop out of university.
Her account concludes: “Even now as I go into my career, I still find it so incredibly hard to trust anyone, even subconsciously. I sabotage myself by not asking for help with anything.
“I’m trying hard to break this cycle but I’m 26 and am very conscious that I may never be able to fully commit to natural trust. But my family is still fighting. I’m still fighting, as are many hundreds involved in the Post Office trial.”
Business Secretary Jonathan Reynolds said the inquiry’s report “marks an important milestone for sub-postmasters and their families”.
He added that he was “committed to ensuring wronged sub-postmasters are given full, fair, and prompt redress”.
“The recommendations contained in Sir Wyn’s report require careful reflection, including on further action to complete the redress schemes,” Mr Reynolds said.
“Government will promptly respond to the recommendations in full in parliament.”