Overview of Someone Knows Something — Season 10, Episode 6 (The Jacqueline Furland-Smith Case)
This episode is a follow-up interview with Sebastian (Sebastián Adam), the husband of Jacqueline (Jackie) Furland-Smith, whose disappearance in Costa Rica on August 17, 2021 remains unresolved. Host David Ridgen revisits inconsistencies that surfaced during his months-long investigation: conflicting timelines, missing or unclear surveillance evidence, cadaver-dog alerts, the discovery of blood in Jackie’s car, and troubling behavior by some local figures involved in the investigation. The episode focuses on Sebastian’s account of the night Jackie disappeared, his state since then, and remaining unanswered questions.
Content warning: the episode and this summary contain references to suicide and self-harm.
Key points and main takeaways
- David Ridgen conducts a second, extended interview with Sebastian to clarify inconsistencies found during the investigation.
- Sebastian maintains he did not kill Jackie and denies concealing her death. He expresses deep depression and PTSD-related memory problems since the disappearance.
- There are multiple, conflicting timelines about Jackie’s movements on August 17, 2021:
- Deanna McIntosh places Sebastian at the Palms restaurant between roughly 4:00–5:15 p.m., where he reportedly said Jackie had stormed off.
- Receipts show Jackie’s credit card used at a surf shop/Walmart in Liberia between about 5:30–7:00 p.m.
- A gatehouse guard reported seeing Jackie drive to the house around 7 p.m., though the guard wasn’t certain of the date.
- No reliable surveillance or eyewitness evidence clearly documents Jackie’s movements after she left the house that night.
- Cadaver-dog searches produced mixed results: one OIJ dog indicated something in the area, and dogs alerted to blood in the Nissan’s backseat; laboratory tests reportedly returned a weak positive for blood, but further details/DNA results are unclear or unavailable.
- Sebastian says the police removed his home surveillance equipment; others involved (including a man known as “Lonnie”) deny requesting or receiving it. Footage from neighboring cameras examined by investigators showed some vehicle movement but no clear sighting of Jackie leaving that night.
- The lead OIJ investigator on the case, Ulysses Guevara, was later arrested for alleged extortion — a development that raises concerns about investigative integrity.
- Both Jackie and Sebastian had mental-health challenges; moving to Costa Rica was intended to help but may have worsened Jackie’s condition. Domestic arguments and previous episodes of Jackie leaving the home were reported.
- Ridgen concludes he believes Sebastian when he says he did not kill Jackie, but the case remains unresolved and many questions persist.
Important timeline (condensed)
- August 17, 2021
- Argument between Jackie and Sebastian. Sebastian describes a sequence where they argued, he took a shower, Jackie threw toilet paper and then allegedly punched him in the face in the shower, and then left—leaving her phone, ring, and some cards at the house.
- Receipts later show Jackie’s credit card used at a surf shop/Walmart in Liberia between ~5:30–7:00 p.m.
- Deanna says she spoke with Sebastian at the Palms restaurant between ~4:00–5:15 p.m.; he reportedly said Jackie had left.
- Gatehouse guard later reported seeing Jackie drive to her house once around 7 p.m. but was unsure of the exact date.
- August 18, 2021
- Neighbor surveillance shows Sebastian on foot in a field near the house at about 11:30 a.m.
- November 2021
- Sebastian seeks work help for a woman he calls a friend (he clarifies they were not a couple).
Notable evidence and investigative issues
- Surveillance cameras: Sebastian says police took his camera box; other parties deny obtaining it. Neighbor cameras were reviewed but produced no definitive image of Jackie leaving the house that night.
- Cadaver dogs: one OIJ dog indicated on the property; another alerted to the Nissan’s backseat. A lab test of material from the car reportedly gave a weak positive for blood, but no conclusive public DNA results have been shared.
- OIJ integrity concerns: lead investigator Ulysses Guevara was arrested for alleged extortion, which undermines trust in parts of the investigation.
- Physical injuries: Sebastian has a significant scar on his leg (attributed to slipping on stones) and a smaller scratch possibly from a stray dog; no police photos exist to verify timing or cause.
- Missing or contradictory statements: Sebastian’s account of whether Jackie left once or multiple times that day conflicts with other witness reports (e.g., Deanna), and with some timelines implied by receipts and guard reports.
Unresolved questions (what still needs answers)
- Exact timeline: Did Jackie leave the house more than once that day? When and where was she between ~4:00 p.m. and 8:00 p.m.?
- Who used Jackie’s credit card in Liberia/Walmart between ~5:30–7:00 p.m., and where was Jackie at that time?
- What happened to the home surveillance footage? If footage exists, why has it not produced a clear sighting?
- Details of the blood test(s) from the Nissan: was DNA run, what were the findings, and how strong/meaningful was the “weak positive”?
- How much did the alleged misconduct by the lead investigator affect the quality and completeness of the original investigation?
- Are there taxi or other transportation records or witnesses that can place Jackie after she left the house?
- Did anyone see Jackie after the 17th? If so, why have those sightings not been corroborated or produced usable evidence?
Notable quotes / insights
- Sebastian on the move to Costa Rica: he thought removing Jackie from North American stress would help her, but says the relocation likely worsened her condition.
- On memory and PTSD: Sebastian says his PTSD affects his memory for details like numbers, days and months, making precise recollection difficult.
- Host’s closing reflection: Ridgen states he believes Sebastian when he says he did not kill Jackie, but the absence of evidence and many contradictions leave the case unresolved.
How you can help / resources
- The investigation is ongoing. If you have information about Jackie Furland-Smith’s disappearance, contact the show or local authorities (the episode asks that any tipsters come forward now).
- If you or someone you know is experiencing suicidal thoughts, help is available: in the U.S. and Canada dial 988 for the Suicide Crisis Hotline (local numbers may vary outside those countries).
Production notes (brief)
- Host/producer: David Ridgen. Produced by Maria Jose Burgos. Sound design: Evan Kelly. Music: Key Witness. Final episode in this planned arc; investigation continues.
This episode highlights the limits of memory, the complications introduced by inconsistent evidence and poor investigative practices, and the painful reality that some disappearances remain unresolved despite intense scrutiny.