Teen couple binge-watched Twilight films after brutal knife murders of mum and daughter
Two teenagers, dubbed the 'Twilight killers', have become the youngest couple to be convicted of a double murder in Britain.
The pair, who were both aged just 14 at the time, killed dinner lady Elizabeth Edwards (49) and her teenage daughter, Katie (13), in a "cold, calculated and pre-planned attack" at their home in Spalding, Lincolnshire.
The boy admitted the two murders, and the girl was convicted following a trial at Nottingham Crown Court.
The killers, who moments after the slaughter took a bath and then watched the film 'Twilight', cannot be identified because of their age.
The pair were compared in court to the infamous American crime duo, Bonnie and Clyde, with one psychiatrist saying the killings would not have happened if they had not been in a relationship.
The girl, said by a defence psychiatrist to have been suffering from a mental disorder, had denied murdering the victims on the grounds of diminished responsibility.
The Crown submitted she was not mentally ill at the time of the killings and was guilty of the "cold, calculated and callous" murder, even though it was the boy who inflicted the fatal stab wounds.
A trial heard that Mrs Edwards and her daughter were found dead by police on Friday, April 15, this year.
The 15-year-old girl was alleged by the prosecution to have shown "sheer brutality and utter contempt" for the victims, helping the boy to carry out the killings "to the letter" after days of planning.
The girl sobbed softly and wiped her face with a tissue in the glass-panelled dock at Nottingham Crown Court as she heard the verdict wearing a black cardigan and black leggings flanked by a security guard.
The court heard the couple shared a "Bonnie and Clyde" view of the world and the girl was the "driver" behind the brutal slayings.
In the months leading up to the killings, the girl wrote in her diary: "There is madness in me" and "death is the only way".
She was described as a "ticking time bomb" fuelled by "sheer contempt and brutality" for her victims.
The sickening plot started as a "joke" but "quickly escalated" when the teens realised they were both serious.
The boy pinned Ms Edwards down on the bed "by kneeling astride her" and "almost completely cut through her windpipe" with a knife.
Her jugular vein was severed and she suffered five knife wounds to one hand as she desperately fought for her life. Katie was stabbed in the neck twice and was then smothered.
The court heard that the couple planned to kill themselves with an overdose but instead ate ice cream, watched vampire romance film 'Twilight' and had sex. (© Daily Telegraph London)