In an unsettling turn of events, the bodies of Albert Alfonso, 62, and Paul Longworth, 71, were discovered in a suitcase and trunk near the Clifton Suspension Bridge in Bristol in July 2024. These remains, which had been transported from London to this quiet corner of the city, have become central to a shocking murder trial.
The accused, Yostin Mosquera, a 35-year-old Colombian national, is facing charges of murder and dismemberment. The case has gripped the public’s attention due to its disturbing nature and the revelations coming to light about the relationships between the victim, the accused, and others involved in the case.
The trial has uncovered a dark web of blackmail, sexual exploitation, and a disturbing chain of events leading up to the gruesome discovery of the bodies.
The Discovery of the Bodies and the Investigation
The discovery of the dismembered remains of Albert Alfonso and Paul Longworth was a chilling moment in the investigation. Found near the Clifton Suspension Bridge, the bodies were placed in a suitcase and trunk, abandoned in a remote area.
Forensic investigators quickly identified the victims as the two men from London, and the police soon linked the murder to Yostin Mosquera, who was later arrested and charged in connection with the deaths. The case has unfolded over several months, with new details emerging in court about the relationships between the victims and Mosquera.
The trial at the Old Bailey has brought to light some harrowing details, particularly regarding the victimization of one of the prosecution’s key witnesses, a man identified by the pseudonym James Smith. His testimony provides a chilling insight into the dynamics of power, control, and manipulation that preceded the murders.
The Testimony of James Smith: Blackmail and Exploitation
One of the most startling revelations in the trial came through the testimony of James Smith, who was blackmailed and sexually exploited by Albert Alfonso.
Smith, who was a teenager at the time of his first encounter with Alfonso, explained in court how Alfonso had recorded a video of him performing sexual acts while he was intoxicated and unsure of his own sexuality. The video was used as leverage by Alfonso to coerce Smith into providing sexual favors in exchange for keeping the video private.
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Smith, who is now an adult, recounted his experiences with Alfonso, describing the manipulation he endured. In court, he admitted that he had not realized at the time the gravity of what had occurred, especially regarding the potential for his drink to have been spiked and whether he had been groomed by Alfonso.

The defense barrister, Tom Little KC, asked Smith whether he had considered these possibilities, to which Smith responded affirmatively. This acknowledgment sheds light on the psychological toll and the complexity of the relationship between Alfonso and Smith, which, over time, grew into a more regular arrangement involving consensual sex acts. Alfonso paid Smith for his encounters, reportedly around £150 per session.
However, the relationship between Smith and Alfonso was not solely based on these transactions. Over time, Smith developed a bond with Alfonso, spending more time with him and also with Paul Longworth, another individual who had been involved in their social circle. Smith described Longworth as a kind, harmless man who wouldn’t hurt anyone, contrasting sharply with the darker dynamics involving Alfonso.
The Role of Yostin Mosquera and the Lead-up to the Murders
The involvement of Yostin Mosquera further complicates the story. Smith testified that he first met Mosquera through Alfonso, who described Mosquera as a young man from Colombia staying with them while attending Ealing College.
Alfonso claimed that he was financially supporting Yostin Mosquera, paying for his travel and college fees. Mosquera, in turn, reportedly told Smith that he had a wife and child back home, adding another layer of complexity to the situation.
Smith mentioned that the three men—himself, Alfonso, and Mosquera—had engaged in a sexual encounter together just one week before the killings occurred. Despite this, Smith described the relationship between Mosquera and Alfonso as seemingly positive, with Alfonso even taking Mosquera sightseeing in London and the pair appearing to enjoy each other’s company.
There were no outward signs of any conflict between them, further deepening the mystery surrounding their connection. The situation took a darker turn, however, as the trial began to unfold. The chilling nature of the murders has raised questions about the motives behind the killings.

The prosecution argues that Yostin Mosquera’s involvement in the deaths was deliberate, with the dismemberment of the bodies further suggesting a level of brutality that points to something far more sinister than a simple dispute. Mosquera denies the charges of murder but has admitted to the manslaughter of Albert Alfonso, leading to even more questions regarding the events that led up to the grisly discovery.
The investigation into the deaths of Alfonso and Longworth has also uncovered unsettling details about the sexual exploitation of Smith, as well as the possibility that both victims were involved in some form of criminal activity or were targeted because of their relationship with Smith and others in their social circle.
As the trial continues, the search for answers into the motivations behind the murders and the dynamics between the key players involved in the case intensifies. The discovery of the dismembered bodies of Albert Alfonso and Paul Longworth near the Clifton Suspension Bridge has been a deeply unsettling event, and the ongoing trial of Yostin Mosquera continues to unravel a complex web of relationships, blackmail, and sexual exploitation.
As the court hears more from witnesses like James Smith, the horrifying nature of the crimes and the dynamics between the people involved become increasingly apparent. The trial not only serves as a grim reminder of the dangers posed by manipulation and exploitation but also raises important questions about the power dynamics that can emerge in such relationships.
The case of Mosquera, Alfonso, and Longworth is one that will continue to shock and disturb, as the details of the murders and the disturbing circumstances surrounding them come to light. While the trial may soon reach its conclusion, the reverberations of this case are likely to be felt for a long time.