Dentist pleads guilty to twin murders

A dentist in the North pleaded guilty today to the murders of his wife and the policeman husband of his ex-lover who were first thought to have died in a suicide pact almost 20 years ago.

Dr Colin Howell, 51, from Castlerock, Co Derry, who has denied the two charges since his arrest last year, changed his plea when he appeared in the dock at Belfast Crown Court.