LONDON (BN24) — A Colombian man has been found guilty of the brutal murders of two men whose dismembered remains he attempted to dump in suitcases on Bristol’s Clifton Suspension Bridge, in one of the most shocking double murder cases to rock the United Kingdom in recent years.
Yostin Andres Mosquera, 35, was convicted Monday of killing civil partners Albert Alfonso, 62, and Paul Longworth, 71, at their West London flat on July 8, 2024. The pair had previously hosted Mosquera — a man they met online and flew in from Colombia — at their Shepherd’s Bush home multiple times, forming what prosecutors described as a complex personal and sexual relationship.
Jurors at Woolwich Crown Court were shown harrowing footage of the killings, captured on surveillance cameras that Alfonso himself had installed inside the apartment. The footage played a central role in disproving Mosquera’s claim that the killings were spontaneous or driven by trauma.
According to prosecutors, the murders were coldly premeditated. Mosquera, who worked in the adult film industry and had shared sexually explicit content online for over a decade, was seen online searching “Where on the head is a knock fatal?” just hours before the murders. He also scouted the value of the couple’s London home and purchased a freezer delivered a day after the killings.
On the day of the attack, Mosquera bludgeoned Longworth to death with a hammer and concealed his body inside a divan bed. Later that evening, during sex with Alfonso, he stabbed him 22 times. Chillingly, Mosquera appeared calm and even celebratory immediately afterward — dancing and singing, then accessing Alfonso’s computer to log into bank accounts.
After killing both men, Mosquera decapitated them, storing the heads in the newly delivered freezer and packing the remaining body parts into suitcases. On July 10, he hired a van to transport the luggage to Bristol’s Clifton Suspension Bridge, allegedly intending to throw the remains into the Avon Gorge.
But his plan was thwarted when pubgoers nearby saw him struggling with the heavy cases. Believing he needed help, they offered assistance and even used Google Translate to order a taxi for him. However, some began to suspect foul play when they noticed fluid — later identified as blood — leaking from the bags. Mosquera fled the scene but was arrested at Bristol Temple Meads railway station on July 13.
Throughout the trial, Mosquera denied premeditated murder. He claimed through an interpreter that Alfonso had raped him and killed Longworth, and that he killed Alfonso in a fit of rage. But the court rejected these assertions as unsupported by evidence. The jury concluded that Mosquera not only planned both murders but also intended to profit from the victims’ deaths.
“This was one of the most disturbing murder investigations I’ve ever led,” said Detective Chief Inspector Ollie Stride of the Metropolitan Police. “The video of Mr Alfonso’s murder was horrific. What was perhaps most chilling was the coldness with which Mosquera responded — singing, dancing, and immediately attempting to steal from a man he had just killed.”
The trial had initially begun at the Old Bailey but was moved to Woolwich Crown Court after technical issues involving digital evidence arose.
Senior Crown Prosecutor Miranda Jollie said the video evidence, though gruesome, was essential in countering Mosquera’s false narrative. “It was horrific, but necessary. The footage made clear this was a calculated and cruel attack,” she said.
Justice Bennathan KC, who presided over the case, said he would sentence Mosquera on October 24. “The only sentence I can pass is life imprisonment,” the judge said. However, he ordered a psychiatric assessment to determine the minimum term Mosquera will serve.
“I want to know if there is anything more going on in this case that we don’t yet understand,” the judge told the jury.
The case has shocked communities across Britain for its sheer brutality, its disturbing digital footprint, and the cold, calculated nature of the crimes committed.
