Discovery ID documentary charts story of killer dentist Colin Howell and Hazel Stewart
A documentary series has charted the story of killer dentist Colin Howell and his affair with lover Hazel Stewart.
The Discovery ID show called 'Britain's Deadliest Lovers' follows what it describes as the "deadly love affair and murder pact between dentist Colin Howell and nursery teacher Hazel Stewart".
The pair were convicted of murdering her first husband Trevor Buchanan and 31-year-old Lesley Howell, the wife of her ex-lover Colin Howell. The killings took place in 1991.
In 2009, Howell confessed to church elders that he had carried out the killings 18 years earlier, arranging the bodies so it looked as his wife and Trevor Buchanan had killed themselves in a suicide pact.
After gassing the pair, Howell dumped a car with their bodies in it behind a row of cottages in Castlerock called The Apostles, and after an investigation - which has since been heavily criticised - police accepted that they had taken their own lives.
Howell would have gotten away with murder if he had not owned up after his second wife, Kyle Jorgensen, an American, called elders from his church to Glebe Road, and admitted everything.
Earlier this year, a four-part drama called The Secret, charted the case, and starred Jimmy Nesbitt as Colin Howell. It was based on a best-selling book about the killings by journalist Deric Henderson.