Episode 38, Season 3 - Colin Howell and Hazel Buchanan - Monsters in the Dark, Part 1

It’s May of 1991 and in the Northern Ireland seaside village of Castlerock, the bodies of Lesley Clarke, wife of prominent local dentist, Colin Howell, and police officer Trevor Buchanan, were found in the car of the garage of a house, dead from carbon monoxide poisoning.

All the evidence pointed to a suicide pact, so, case closed.

However, it would take nearly twenty years, a guilty conscience and a stunning confession for the sinister truth about what really happened to Lesley and Trevor to be revealed.

Listen to the episode HERE.

Photo caption (L-R): Before marrying Colin Howell, Lesley pursued a career in nursing (credit: Irish Independent); Hazel and Trevor Buchanan on their wedding day (credit: Crime World); Colin and Lesley on their honeymoon (credit: Crime World); Lesley with two of her and Colin's four children (credit: Irish Times); Lesley with her and Colin's four children (credit: Daily Mail); Lesley and Colin were smiling on the outside but they were drowning in debt and Lesley was increasingly dependent on alcohol and sleeping pills (credit: The Times); Hazel had grown increasingly bored and unhappy with her husband, Trevor, who worshipped her (credit: Daily Mail); Colerain Baptist Church where Hazel taught Sunday school and where the Howells and Buchanans met (credit: Colerain Baptist Church); Colin and Hazel would eventually embark on a reckless and ultimately murderous affair (credit: The Telegraph)

Sources:

Let This Be Our Secret: The shocking true story of a killer dentist, his mistress, how they murdered their spouses -and how they almost got away with it by Deric Henderson