Terrifying & True | Castlerock Double Murder (1991): Staged as a Suicide Pact

Terrifying & True | Castlerock Double Murder (1991): Staged as a Suicide Pact

Author: Henrique Couto | Scary Stories & Horror Expert March 9, 2026 Duration: 46:50
A locked garage behind a quiet holiday cottage. A car filling with exhaust. And two bodies posed to tell a simple story: a suicide pact between two “betrayed” spouses.

On May 19, 1991, in Castlerock, Northern Ireland, Lesley Howell (31) and Trevor Buchanan (32) are found dead inside a vehicle with a hose running from the exhaust into the car—an apparent double suicide that the community quickly accepts. Lesley is a mother of four. Trevor is a police constable and father. Both are mourned as victims of heartbreak and scandal.

But the truth is darker—and it doesn’t surface for nearly two decades.

Behind the public grief, investigators will later learn, a secret affair and a ruthless plan were allegedly shaping events from the shadows. Colin Howell, a respected dentist and lay preacher, and Hazel Buchanan (later Hazel Stewart) are accused of plotting to remove their spouses and stage the scene to look like a tragic decision. The story moves from a “straightforward” death scene to something far more chilling: sedation, exhaust fumes, meticulous staging, and a lie that holds until January 2009, when Colin Howell finally breaks and confesses—first to church elders, then to police.

The confession reopens everything. Hazel is arrested. In court, the case becomes a battle over what was done, what was admitted, and whether Hazel’s role was coerced or fully complicit. The old garage scene is re-examined with a new question: not why would they do this? but who benefits if everyone believes they did?

Inside this episode
  • The discovery in Castlerock and why police initially believed it was a double suicide
  • The secret relationship hiding in plain sight inside a tight religious community
  • The alleged method: sedatives + exhaust fumes and the “suicide pact” staging
  • How the case stayed buried—until a confession detonated it in 2009
  • The interrogation dispute: coercion vs. participation
  • The courtroom reckoning and the verdict that finally rewrote the official story

This is a true crime nightmare about image, faith, control, and deception—and how a staged scene can trap the truth for years. We’re telling that story tonight. 


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Henrique Couto has spent years digging into the shadows, and in Weekly Spooky: Horror Stories & Scary Tales, he turns that expertise into a regular dose of dread. This isn't just a seasonal treat; it's a year-round exploration of the unsettling, released every Monday and Wednesday. You'll hear original tales woven from classic threads-the whisper of an urban legend, the creak of a haunted house floorboard, the grim history of a cursed object. Familiar monsters like vampires and werewolves get fresh, chilling life, while cryptids lurk in the margins of modern myths. Each story is crafted for a mature audience, blending dark humor with genuinely cinematic sound design that pulls you right into the scene, all leading to those satisfying, often shocking, twist endings. While the podcast naturally excels during the spooky season with special deep dives, the commitment to weekly frights means the atmosphere is always ripe for a scare, whether the subject is pure fiction, dramatic re-tellings, or tales ripped from true crime's darkest corners. Settle in for a journey where the familiar becomes frightening again, narrated by a guide who truly understands the mechanics of a good, lasting chill.
Author: Language: English Episodes: 100

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