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A court has heard that a man whose dismembered remains were discovered in a suitcase had sexually assaulted and extorted a teenager.

The bodies of 62-year-old Albert Alfonso and 71-year-old Paul Longworth were found in a suitcase and trunk discarded near Bristol’s Clifton Suspension Bridge in July 2024, having been transported from London.

During the trial of Yostin Mosquera, accused of the murders and dismemberments of the two individuals, a witness testified that Mr. Alfonso had coerced him into sexual acts through blackmail.

Mr. Mosquera, a 35-year-old Colombian national, has pleaded not guilty to the charges of murder but has accepted responsibility for the manslaughter of Mr. Alfonso.

Identifying himself as James Smith, the witness revealed to the jury at the Old Bailey that he was approximately 17 or 18 years old when he first encountered Mr. Alfonso nearly two decades ago.

Witnessing via video link, he recounted visiting Mr. Alfonso’s apartment for drinks after a rugby match and waking up with a severe headache.

When he inquired about what had occurred, Mr. Alfonso displayed a video of himself engaging in sexual acts with Mr. Smith.

“I was at a loss for what to do. I felt utterly humiliated. At that moment, I was uncertain of my own sexuality, filled with confusion and fear,” he explained in court.

“As a Black youth in London identifying as gay, it was irrelevant whether I had been drinking or not – the situation was daunting.”

He stated that Mr. Alfonso assured him that he would keep the video private and that if Mr. Smith performed certain “favours,” it would remain undisclosed.

During cross-examination, defense attorney Tom Little KC asked Mr. Smith, “In retrospect, have you considered that you were raped?”

“Yes, now I do,” he answered.

“And do you think it’s possible that your drink was tampered with?” the barrister pressed.

“Yes, I believe that now.”

“Have you considered that Albert Alfonso may have groomed you?”

“Yes, I think that now,” Mr. Smith replied.

He detailed how Mr. Alfonso expressed an interest in “black dominatrix” fantasies and described various fetishes related to “master-slave” dynamics.

According to the court, Mr. Alfonso would pay him approximately £150 for each sexual encounter, and as time passed, their meetings became more routine and consensual.

Mr. Smith noted that there were times he would reach out when he needed financial assistance.

During the Covid pandemic, he indicated that his relationship with Mr. Alfonso deepened, and he began spending time with Mr. Longworth, going on bike rides with them and occasionally receiving financial support.

He also shared that Mr. Alfonso introduced Mr. Mosquera as a young Colombian staying with them while he attended Ealing College.

Mr. Alfonso allegedly covered Mr. Mosquera’s travel and tuition expenses, and Mr. Mosquera mentioned having a wife and child in his homeland.

“I asked if he identified as gay or straight, and he replied that he was doing it for the money,” Mr. Smith recalled.

“I thought, ‘That’s great – so am I.'”

He mentioned that the three of them engaged in a sexual encounter together just a week prior to the homicides.

Describing the dynamics between Mr. Mosquera and Mr. Alfonso, the witness characterized their relationship as “good – very good.”

“He was accompanying Mr. Alfonso to London for sightseeing, and they seemed to have fun together,” he observed.

“I did not witness any signs of animosity between them.”

When discussing Mr. Longworth, he remarked, “He wouldn’t harm a fly. After the sessions, he would come and join us for conversation.”

The trial is ongoing.