The Victims: Albert Alfonso and Paul Longworth

Albert Alfonso and Paul Longworth were a beloved couple who shared a flat on Scotts Road in Shepherd’s Bush. Alfonso, originally from France but a British citizen, was a 62-year-old swimming instructor known for his dedication to his work. Longworth, a 71-year-old British retired handyman, was described as kind and quiet. The couple, who entered into a civil partnership in February 2023, were well-liked by neighbors, who remembered them as “friendly,” “happy,” and “genuinely fond of one another” (The Guardian). Their plans to retire and travel were tragically cut short by the events of July 2024.

The Crime: A Horrific Sequence of Events

The murders allegedly occurred on July 8, 2024, at the victims’ flat in Shepherd’s Bush. According to the prosecution at the Old Bailey, Mosquera first killed Paul Longworth by striking him with a hammer to the back of the head. He then allegedly stabbed Albert Alfonso multiple times during a sexual encounter, which was recorded on film. The prosecution claims Mosquera “could hardly deny” killing Alfonso due to the video evidence (BBC News). After the killings, Mosquera is accused of decapitating and dismembering both bodies, freezing some remains, and placing others in suitcases.

On July 10, 2024, Avon and Somerset Police were called to the Clifton Suspension Bridge in Bristol just before midnight after reports of a man acting suspiciously with a suitcase. Two suitcases containing human remains were found, later identified as belonging to Alfonso and Longworth. Additional remains were discovered at the victims’ flat on July 12, 2024, confirming the connection to the Bristol findings (The Independent). Mosquera was arrested at Bristol Temple Meads train station on July 12, 2024, following a high-profile manhunt.

Yostin Andres Mosquera: Background and Connection to the Victims

Yostin Andres Mosquera, a 35-year-old Colombian national, was staying with Alfonso and Longworth at their Scotts Road flat for a short period before the murders. Described in court as a “pornographic performer” who posted content online under the name “iamblackmaster” since 2017, Mosquera had a transactional relationship with Alfonso, engaging in sex acts for payment (ITV News). Alfonso reportedly enjoyed “extreme sex,” which Longworth was aware of and accepted, though he did not participate.

Mosquera’s connection to the victims extended beyond their time in London. Social media photographs show the trio together in Colombia, enjoying a boat ride and relaxing on a beach, suggesting a level of familiarity and trust (Daily Mail). Mosquera had visited the UK multiple times, and the couple had also traveled to his home country, indicating a relationship that spanned continents.

Legal Proceedings: The Trial at the Old Bailey

The trial of Yostin Andres Mosquera began on April 30, 2025, at the Old Bailey, with prosecutor Deanna Heer KC presenting the case to the jury. Mosquera has admitted to the manslaughter of Albert Alfonso, claiming loss of self-control, but denies the murder charges for both victims. The prosecution has rejected his manslaughter plea, arguing that the killings were premeditated. Mosquera also claims that Alfonso was responsible for Longworth’s death, a defense that has been contested in court (Sky News).

The trial has revealed disturbing details, including video evidence of Mosquera stabbing Alfonso and footage of him singing and dancing after the attack. The prosecution alleges financial motives, noting that Mosquera searched for the value of the victims’ home and accessed their banking details (The Mirror). The trial is ongoing, with further testimony expected to shed light on the events of July 8, 2024.

Community Impact and Reactions

The discovery of human remains near the Clifton Suspension Bridge sent shockwaves through the Bristol and West London communities. The gruesome nature of the crime, coupled with the victims’ reputation as kind and happy individuals, has left neighbors and residents reeling. One neighbor described Alfonso and Longworth as “lovely guys” who were set to retire and travel, highlighting the profound loss felt by those who knew them (Mirror Online).

The Metropolitan Police have stated that they are not seeking additional suspects, which may provide some reassurance to the community (Sky News). However, the case has raised concerns about safety, particularly given that Mosquera was a guest in the victims’ home. The classification of the crime as a hate crime under national guidelines, despite no clear homophobic motive, has also prompted discussions about the nature of the investigation (The Independent).

Broader Implications

This case underscores the devastating impact of violent crime on communities and the complexities of personal relationships. The fact that Mosquera was known to the victims and had spent time with them socially highlights the challenges of identifying potential threats within trusted circles. The trial also raises questions about mental health, financial motives, and the role of extreme behaviors in criminal acts, though these aspects remain under scrutiny as the legal process unfolds.

The loss of Alfonso and Longworth, who were described as a devoted couple with plans for a bright future, serves as a poignant reminder of the fragility of life. Their story has resonated with many, prompting calls for greater community support and vigilance to prevent such tragedies in the future.

Call to Action

As the trial continues, the focus remains on seeking justice for Albert Alfonso and Paul Longworth. The case highlights the importance of community resources, such as counseling and support services, for those affected by violent crime. Organizations like the National Domestic Violence Hotline can provide assistance to individuals facing challenging situations, though this case does not appear to involve domestic violence specifically. Staying informed and supporting the legal process can help ensure that the truth is uncovered and justice is served.

Conclusion

The murders of Albert Alfonso and Paul Longworth by Yostin Andres Mosquera represent a tragic and shocking chapter in the history of West London and Bristol. The couple’s untimely deaths, marked by allegations of brutal violence and dismemberment, have left a lasting impact on their community and beyond. As the trial at the Old Bailey progresses, the world watches to see how justice will be served for two men who were cherished by those around them. This case serves as a somber reminder of the need for compassion, vigilance, and a commitment to uncovering the truth in the face of unimaginable loss.