Yostin Andres Mosquera, 35, was found guilty on Monday at Woolwich Crown Court of killing Albert Alfonso, 62, and Paul Longworth, 71, at their shared flat in the Shepherd’s Bush area of West London on July 8, 2024. The jury deliberated for just over five hours before delivering unanimous verdicts on both murder charges.
According to the prosecution, Mosquera fatally stabbed Alfonso during what was described as a consensual sexual encounter and then bludgeoned Longworth to death with a hammer. Both killings were captured on video recorded by the defendant.
Following the murders, Mosquera dismembered the victims’ bodies using a saw, stored parts in a freezer, and packed others into suitcases. In the early hours of July 10, he traveled by train to Bristol and was later seen on CCTV footage pushing the luggage through the city toward the Clifton Suspension Bridge.
Police were alerted that same morning by members of the public who noticed a man acting suspiciously on the bridge. Officers arrived at the scene shortly after Mosquera had thrown one suitcase over the side. Another case was recovered nearby. A large-scale search of the River Avon and surrounding areas led to the recovery of several body parts.
Subsequent searches at the couple’s flat revealed blood-stained tools, cleaning supplies, and freezer compartments containing additional remains. Forensic analysis confirmed the identities of the victims and linked Mosquera to the crime through DNA, CCTV evidence, and digital communications.
During the trial, Mosquera admitted to manslaughter in the case of Mr. Alfonso, claiming he had acted in the heat of the moment following an argument. He accused Alfonso of being responsible for Longworth’s death, an account the prosecution described as "fantastical" and unsupported by evidence.
"This was a chilling and calculated double murder," said Detective Chief Inspector Neil John, who led the investigation. "Mosquera went to great lengths to conceal the crime, but the forensic trail he left behind was overwhelming."
The victims had been in a romantic relationship earlier in life and, though no longer partners, had continued to share a home. Friends and family described both men as kind and deeply rooted in their community.
In court, prosecutors described the killings as “brutal, methodical and deeply disturbing.” Jurors were shown portions of the videos recorded by Mosquera, as well as surveillance footage tracing his movements across London and Bristol.
The judge, Mrs. Justice Cheema-Grubb, ordered that Mosquera be held in custody pending sentencing, which is scheduled for October 24. A psychiatric evaluation has also been ordered prior to sentencing.
Authorities have said that this case raises broader concerns around support for vulnerable individuals in the LGBTQ+ community, particularly when dealing with strangers or individuals they may meet online.
"This verdict brings some measure of justice," said a spokesperson for the victims' families, who asked for privacy. "But it does not erase the horror of what was done."
The case has drawn national attention not only due to its grisly nature but also because of the detailed forensic and digital investigation that led to the conviction.
If sentenced as expected, Mosquera will likely face life imprisonment with a significant minimum term.
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