Jurors have been shown video of a porn star allegedly murdering a man during sex after prosecutors say he beat the victim’s lover to death with a hammer.
Yostin Andres Mosquera, 35, is accused of dismembering the bodies of Albert Alfonso, 62, and Paul Longworth, 71, and keeping their heads in a chest freezer before dumping their decapitated remains at Bristol’s Clifton Suspension Bridge.
The Colombian defendant, 35, wearing a white shirt and blue jeans, admitted the manslaughter of Mr Alfonso during a hearing at the Old Bailey on Tuesday, but denies the two charges of murder on which he is being tried.
Prosecutor Deanna Heer KC told jurors at the Old Bailey today that Mosquera ‘could hardly deny’ killing Mr Alfonso, telling them the attack took place last July 8 while the defendant and Mr Alfonso were having sex – with both the sex and the killing recorded on film.
And video was today shown to jurors at the Old Bailey – including Mosquera singing and dancing in the aftermath of the attack, the trial heard.
In advance of the film being shown, the judge Mr Justice Bennathan warned the jury: ‘It is not an easy watch.’
Prosecutor Ms Heer described the killing as ‘obviously a violent assault’, before adding: ‘What is striking when one looks at the footage is just how calm and just how in control Mr Mosquera remains throughout.
‘Indeed, so unconcerned does he appear by what he has just done that, as Mr Alfonso lies on the floor dying, the defendant starts singing and breaks into a dance.’
Mosquera (left) is pictured alongside Alberto Alfonso (centre) and Paul Longworth (right)
Yostin Andres Mosquera (pictured) faces trial for the murders of Albert Alfonso, 62, and Paul Longworth, 71, on July 8 last year
Mosquera was arrested days after police were alerted to a man acting suspiciously on Clifton Suspension Bridge (pictured) where police found two suitcases of human remains
She told jurors how the defendant ‘then makes his way directly to the desktop computer in Mr Alfonso’s room and starts using it to look at information about Mr Alfonso’s finances’.
The court heard examination of the computer showed Mosquera created a PowerPoint of the couple’s banking information, accessed a spreadsheet which contained their passwords for online banking and attempted to access Mr Alfonso’s different accounts to transfer money – including trying to send £4,000 to his own account in Colombia.
He made several cash withdrawals from Mr Alfonso’s different bank accounts, obtaining at least £900 before the transactions started getting declined, the court was told.
Mosquera is also said to have messaged Mr Alfonso’s manager the morning after the killing from the victim’s phone explaining he was flying to Costa Rica for a family emergency and planned to stay for around eight weeks.
The court has heard Mosquera blames Mr Alfonso for the death of Mr Longworth at a flat the British-based couple shared in Shepherd’s Bush, west London.
Mr Alfonso, who worked as a swimming instructor, and retired handyman Mr Longworth were described by neighbours as a ‘friendly couple who seemed happy together and who were genuinely fond of one another’.
They entered into a civil partnership in February 2023.
The Old Bailey was told Mr Alfonso liked ‘extreme sex’ which Mr Longworth, who knew about it and accepted it, had ‘nothing to do with’.
Yostin Mosquera and his interpreter are depicted today in a court drawing at the Old Bailey
Mosquera has been charged with two counts of murder after remains of Albert Alfonso (left), 62, and Paul Longworth (right), 71, were found in Bristol and London
Mr Alfonso would engage in acts with other men, including Mosquera, jurors were told – with the defendant described by the prosecution as a ‘pornographic performer’.
It was said Mosquera visited the UK more than once and spent time with Mr Alfonso and Mr Longworth, engaging in sex acts with the former in exchange for payment, and that the couple also visited the defendant in his home country of Colombia.
‘They seemed to enjoy one another’s company,’ Ms Heer said of the trio.
She also told the jury how Mr Alfonso arranged a guest membership for Mosquera at the gym where he worked and asked for the defendant to be included in the staff five-a-side football WhatsApp group.
The prosecutor described how Mosquera ‘had other matters on his mind’ when he visited Mr Alfonso and Mr Longworth in June last year.
Analysis of the defendant’s computer allegedly revealed that between June and July 8 he searched for the value of the couple’s west London home, browsed Facebook marketplace for a chest freezer, copied spreadsheets containing Mr Alfonso’s log-in details for his online bank accounts on to his laptop and searched for ‘serial killers of London’ and ‘Jack the Ripper film’.
On July 8, Mosquera allegedly killed Mr Longworth and Mr Alfonso in their flat and then ‘set about trying to steal from them’.
‘Paul Longworth had been attacked with a hammer to the back of his head, suffering repeated blows, which shattered his skull,’ Ms Heer said.
‘Albert Alfonso had been repeatedly stabbed, suffering multiple wounds to his torso, his body, and his face and to his neck. None of that is in dispute.’
At about 11.30pm on July 10, a cyclist making his way across the Clifton Suspension Bridge spotted Mosquera standing next to a large red suitcase and stopped to see if he was OK, thinking he was a tourist, the court heard.
The witness also spied a large silver trunk a few metres away from the defendant before Mosquera told him the luggage contained car parts, jurors were told.
‘That was a lie,’ prosecutor Ms Heer said.
‘In fact, the suitcases contained the decapitated and dismembered bodies of Paul Longworth and Albert Alfonso, which the defendant had transported to Bristol from their home in London where they had been killed two days before.’
Ms Heer added: ‘Their decapitated heads would be found by the police in a chest freezer at their flat.
‘Paul Longworth had been attacked with a hammer to the back of his head, suffering repeated blows, which shattered his skull.
‘Albert Alfonso had been repeatedly stabbed, suffering multiple wounds to his torso and to his face and to his neck. His throat had been cut.
‘The defendant admits that he killed Albert Alfonso. He could hardly deny it, because the killing took place whilst he and Alfonso were having sex, and the sex and the killing were recorded on film.
‘However, although he admits killing Albert Alfonso he denies the offence of murder, admitting only the lesser offence of manslaughter – and he denies that he killed Paul Longworth at all.
‘He blames Albert Alfonso for Paul Longworth’s death.
‘The prosecution case is that the defendant murdered both men, that he intended to kill them, that his actions were planned and premeditated and, that having killed them, he immediately set about trying to steal from them.’
Mr Alfonso’s partner Mr Longworth had likely already been killed by Mosquera with hammer blows to the back of the head before the sex session, the Old Bailey heard.
Mosquera had met Mr Alonso online where the Colombian defendant used the names ‘iamblackmaster and ‘mrd-k20cm’, the court heard.
He came to the UK to participate in sex acts and he dominated and degraded Mr Alfonso about which the older man made films which he posted online.
In March 2024 Mr Alfonso and Mr Longworth went on holiday to Columbia and spent time with Mosquera, the trial heard.
Ms Heer said: ‘Holiday snaps show the three men on the beach together, having a meal and taking a boat ride, seemingly having a good time.’
Mosquera denies murdering retired handyman Mr Longworth – who the court heard had no involvement the extreme sex side of his partner’s life.
He also denies murdering Mr Alfonso, a swimming instructor, but admits his manslaughter.
Mr Longworth was Irish and Mr Alfonso was originally from France but had obtained British citizenship.
The trial continues.
