A new television documentary airing Wednesday night on Channel 5 examines the final hours of 19-year-old Jay Slater. Slater died after going missing in Tenerife in June 2024. The debut episode of the fourth season of “Cause of Death” follows Slater’s mother, Debbie Duncan, and his uncle, Glen Duncan. They return to Tenerife’s Rural de Teno national park alongside forensic pathologist Dr. Richard Shepherd to retrace the teenager’s last known route.
Slater, an apprentice bricklayer from Oswaldtwistle, Lancashire, went missing on June 17, 2024. He had attended the NRG music festival in Playa de las Americas. His disappearance prompted a massive 29-day search across difficult terrain. The search ended when searchers discovered his body in the Juan López ravine near Masca. An official inquest confirmed his death was a tragic accident. He suffered severe skull fractures and traumatic brain injuries from a fall from height, with no third-party involvement.
Retracing Final Steps and Seeking Answers
During the special documentary episode, Debbie Duncan meets with Dr. Richard Shepherd. Dr. Shepherd conducted the UK post-mortem examination. Together, they review medical scans and evidence regarding her son’s final moments. A central question for the grieving mother was whether her son suffered or survived for a prolonged period after his fall.
Dr. Shepherd explained to Ms. Duncan that the head injury was severe enough to cause immediate death. He assured her that her son experienced no prolonged pain or suffering. Seeing the rugged landscape firsthand also clarified why her son kept moving forward instead of turning back.
“Seeing all that now, I understand it better. That’s what closure has given me,” Ms. Duncan said during the programme. She reflected on the helplessness and isolation her son likely felt while attempting to walk back to his accommodation.
Addressing Online Misinformation and Conspiracy Theories
The high-profile case generated intense international attention. Online sleuths on platforms like TikTok heavily targeted the case, spreading conspiracy theories and false claims about criminal involvement and foul play. Both official Spanish and British investigations, alongside the UK inquest in July 2025, found zero evidence of coercion, threats, or third-party assaults.
Dr. Shepherd noted that the information vacuum during the slow-moving cross-border investigation allowed unverified rumors to flourish. This amplified the family’s distress while they searched for their son. The Channel 5 documentary aims to set the record straight using hard forensic data. It features mobile phone mapping provided by digital forensic scientist Dr. Angus Marshall and first-hand geographical analysis.
When to Watch Cause of Death
The season four premiere of Cause of Death focuses entirely on the investigation surrounding Jay Slater. It is scheduled to broadcast on Channel 5 on Wednesday at 9:00 PM UK time.
