Man guilty of murdering couple before dumping remains near Clifton Suspension Bridge

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A man who murdered two men and dumped their remains in suitcases near Clifton Suspension Bridge has been found guilty of murder.

Yostin Andres Mosquera, 35, killed civil partners Albert Alfonso, 62, and Paul Longworth, 71, on July 8 last year in their flat in Scotts Road, Shepherd’s Bush, west London.

Mosquera, who was also staying with the couple, ‘decapitated and dismembered’ them, froze parts of their remains and brought the rest in suitcases to Clifton Suspension Bridge in Bristol.

He repeatedly stabbed Alfonso, who suffered injuries to his torso, face and neck, while Longworth was attacked with a hammer to the back of his head and his skull shattered.

Mosquera planned to hurl the suitcases over the bridge to dispose of the remains after the ‘calculated and premeditated’ killings, prosecutor Deanna Heer KC said. He admitted killing Alfonso but said he ‘lost control’.

Undated handout file photo issued by the Metropolitan Police of Photo of (left to right) Paul Longworth and Albert Alfonso. Yostin Andres Mosquera, 35, has been found guilty at Woolwich Crown Court of murdering civil partners Albert Alfonso, 62, and Paul Longworth, 71, in July last year before dumping their remains in suitcases near Clifton Suspension Bridge. Issue date: Monday July 21, 2025. PA Photo. Photo credit should read: Metropolitan Police/PA Wire NOTE TO EDITORS: This handout photo may only be used for editorial reporting purposes for the contemporaneous illustration of events, things or the people in the image or facts mentioned in the caption. Reuse of the picture may require further permission from the copyright holder.
Paul Longworth (left) and Albert Alfonso (right) were murdered (Picture: PA)

He pleaded not guilty to murdering both men and insisted Alfonso killed Longworth. It took a jury five hours and three minutes to unanimously find Mosquera guilty.

Justice Bennathan KC, said he would sentence Mosquera on October 24, saying: ‘I am not going to pass sentence on you today, although the only one I can pass on you is one of life imprisonment.

‘I am going to order a psychiatric report on you. It is in your interests to cooperate with the psychiatrist so that I can decide the minimum term you are going to serve.’

Days after the murders, a cyclist on Clifton Suspension Bridge in Brighton spotted Mosquera around 11.30 pm next to a large red suitcase.

The cyclist thought he was a tourist and stopped to ask if he was okay. He noticed a silver trunk a few metres away from Mosquera.

The defendant told the cyclist he was from Colombia and that the suitcases contained car parts – but they contained the dismembered bodies of Longworth and Alfonso.

Alfonso and Longworth’s decapitated heads were found by police in a chest freezer in their flat, the court heard.

Alfonso, a swimming instructor, and Longworth, a retired handyman, had been living together before their death.

How the crime happened

Embargoes grabs - Clifton Suspension Bridge suitcase murders Yostin Andres Mosquera - accused of killing Alberto Alfonso and Paul Longworth. They are embargoed until after the verdict - can we make sure that's clear/there are legal warnings so no one uses before hand
Both men were killed in the London flat (Picture: PA)

On July 8 last year, Alfonso worked an early shift at the gym, and it was while he was out, Mosquera killed Longworth, the court heard.

Alfonso was killed at about 10.15 pm in his bedroom, before searching Facebook Marketplace to search for a freezer, and he searched ‘where on the head is a knock fatal’ on Google and YouTube.

Footage shown in court showed Mosquera later having sex with Alfonso, before ending the sexual encounter by ‘repeatedly stabbing’ Alfonso and ‘cutting his throat’.

Forensic officers at an address in Shepherd's Bush, west London, after human remains were found
The men’s home in Shepherd’s Bush was a major crime scene (Picture: PA)

He then started using Alfonso’s computer, and examination of the computer shows the defendant looking at banking information – before trying to send £4,000 to his account in Colombia.

Mosquero was arrested on July 13 at about 2.15 am after being found sitting on a bench outside Bristol Temple Meads railway station, the jury was told.

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