Detectives have launched a new appeal in a bid to trace ex-patients of dentist Colin Howell who is facing a double murder as well as accusations of drugging and indecently assaulting four women.
It is the second time they have asked former patients to come forward.
Howell, 50, and his former lover Hazel Stewart, 45, who has also been charged with the murders of their ex-partners, are due back in the dock of North Antrim Magistrates Court in Coleraine, Co Londonderry next Monday.
Mother of two Lesley Howell, 31, and Mrs Stewart’s policeman husband at the time, Constable Trevor Buchanan, 32, were found dead in a car filled with carbon monoxide fumes at Castlerock in May 1991. It was thought they were the victims of some sort of suicide pact. The car was parked in a garage behind the home of Mrs Howell’s father, retired company director Henry Clarke who died suddenly just days earlier.
But in late January detectives re-opened the investigation into the deaths. The file on Mr Clarke’s death has also been re-opened.