A porn actor who murdered a couple in a plot to steal their west London home before trying to dump the bodies in suitcases on the Clifton Suspension Bridge has been jailed for life.
Yostin Andres Mosquera, 35, bludgeoned 71-year-old Paul Longworth over the head with a hammer and slit the throat of his partner Albert Alfonso, 62, with a knife.
The second murder was caught on film, in extremely graphic footage from cameras Mr Alfonso had set up around the home.
Mosquera slit his victim’s throat and repeatedly stabbed him, before sadistically asking: “You like it?”. As Mr Alfonso lay dying, Mosquera – still naked – sang a song in Spanish and danced.
At Woolwich crown court on Friday, Mr Justice Bennathan imposed two life sentences on Mosquera and ordered that he spend at least 42 years behind bars.
“It was a tragedy you, Yostin Mosquera, came into their lives and killed them both”, said the judge.
“I have to sentence you for these premeditated and thoroughly wicked crimes.”
He concluded Mosquera had planned to steal the couple’s home, though he was “naive” in thinking he would be able to actually sell it, and described Mosquera as “dancing with pleasure” after killing Mr Alfonso.
And the judge said it was a “hopeless endeavour” to try to dump the bodies from the bridge due to barriers and high fences, but told Mosquera: “Being an incompetent criminal does not count as mitigation.”
The judge stopped short of imposing a whole life term on the killer, after finding Mosquera had used weapons found around the house and may not have planned the murders as extensively as first believed.
“You are an odd man who conducted many thousands of searches on your laptop, and I can’t be sure you actually decided to carry out this crime until early July.”
The judge added that Mosquera could rely on mitigation that he had witnessed children being killed when he was younger.
The Colombian national carried out the murders at the couple’s home in Scott Road, Shepherd’s Bush on July 8 last year.
He had come to the UK a month earlier to stay with Mr Alfonso and Mr Longworth, and his internet research revealed he spent the weeks preparing for murder.
Mosquera repeatedly made online searches for the value of the couple’s home, he looked up poisoning, serial killers, and Jack the Ripper, and took to Facebook Marketplace for a chilling hunt for an “industrial blender”.
On July 4, Mosquera turned his attention to the banks where Mr Alfonso held his money, including maximum possible withdrawals, and had made plans to purchase a large chest freezer.
“We say the defendant planned in advance to kill both victims in order to steal from them”, said prosecutor Deanna Heer KC, adding: “He would have needed to plan to kill both victims to do so.”
The murders were first uncovered on July 10, when Mosquera was caught red-handed trying to dump the bodies of both men at the Clifton Suspension Bridge.
He had chopped up the bodies and loaded them into two suitcases, but ended up abandoning them on the famous bridge at 11.30pm when a member of the public mistook him for a lost tourist and asked if they could help.
The decapitated heads of Mr Alfonso and Mr Longworth were later recovered from a chest freezer at their home.
The discovery of the bodies by police led them back to the west London home.
“Paul Longworth had been attacked with a hammer to the back of his head, suffering repeated blows, which shattered his skull”, said Ms Heer. “At the time of his death, he was 71 years of age. “Albert Alfonso had been repeatedly stabbed, suffering multiple wounds to his torso and more to his face and neck. His throat had been cut. At the time of his death he was 62 years of age.”
Mosquera, who has no previous convictions in the UK or Colombia, was arrested three days after the bridge incident, having apparently spent the time living rough in Bristol.
He admitted the manslaughter of Mr Alfonso after it was revealed that the gruesome killing had been caught on cameras set up to record sex session.
The Old Bailey was told Mr Alfonso had an interest in “extreme sex” which he recorded on cameras in the home and posted the videos online. Mr Longworth, his long-term partner, knew about his interest and allowed him to explore it with other men.
Mosquera, an porn actor since around 2017, met Mr Alfonso online and they struck up a relationship. He had visited the UK in October 2023, and photos recovered by police showed the couple taking him to tourist sights including Madame Tussauds, on an open top bus trip, and on a river boat.
Mosquera sent Mr Alfonso a sex video in December 2023, when he was dressed as Father Christmas, and in March last year the couple went on holiday to Colombia, taking photos of the three of them on a beach together and enjoying a meal.
When Mosquera came to the UK in June last year, Mr Alfonso arranged for him to have a pass to the Mode Gym in Acton where he worked as a swimming instructor, included him in a five-a-side team and enrolled him on an English language course.
The three men went on a trip to Brighton on June 29, at a time when Mosquera was already contemplating murder.
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Mosquera had taken files from Mr Alfonso’s computer containing details of his banking, and he had also researched homes for sale in Medellin in Colombia.
Mr Alfonso was at work when Mr Longworth, a retired handyman, was bludgeoned to death by Mosquera.
The killer had Googled the best way to attack someone, and viewed YouTube videos for tips.
Mosquera hid Mr Longworth’s body before going on to attack and kill Mr Alfonso, during a sex session and in a room covered in cameras.
“He could hardly deny it, because the killing took place while he and Mr Alfonso were having sex, and the sex and the killing were recorded on film”, said Ms Heer.
Jurors across two trials had to watch the gruesome footage, as Mosquera made the bogus claims that Mr Alfonso had killed Mr Longworth, and he insisted he stabbed Mr Alfonso when suffering a loss of self-control.
He was ultimately convicted of two counts of murder.
On Friday, Mosquera also pleaded guilty to three charges of possessing indecent images of children. He had received, downloaded and viewed more than 6,000 illegal images and videos which had been shared on chatgroup online, with some featuring the sexual abuse of children as young as two-years-old.
The judge passed a sentence of 16 months in prison on the images charges, to run concurrently to Mosquera’s life sentences.
The judge also told Mosquera he would be deported on release, but may actually never be safe to be set free again.
After the sentencing, Detective Chief Inspector Ollie Stride, from the Met’s Specialist Crime Command, said it was “one of the most harrowing murders my team and I have ever investigated”.
"The team have consumed hundreds of hours of footage – including the murder of Albert Alfonso”, he said.
"Those images will stay with all of us for a very long time.
“Paul and Albert were murdered in the most brutal and callous of ways. They had known one another for decades and were in a loving, caring relationship.
"They did not deserve to have their lives taken away in the most traumatising of circumstances - in the privacy of their own home, where they had welcomed Mosquera in.
"The couple had opened their door to a man so evil he would take advantage of their lively spirit and generosity, and murder them to satisfy his own financial gains.”
Scotland Yard detectives worked with officers from Avon and Somerset Police, and also collaborated with the LGBT+ Independent Advisory Group
