Two teenage sweethearts shared a bath and watched hit vampire movie Twilight after murdering a mum and daughter in their beds, a court heard.

Dinner lady Elizabeth Edwards, 49, and her 13-year-old daughter Katie were found stabbed to death at their home on April 15 this year.

They were both knifed through the throat in a “cold, calculated and callous” attack in Spalding, Lincs, jurors were told.

Prosecutors claim the killings were carried out by a boy and a girl aged just 14, who hatched the plot at a McDonald’s restaurant.

<span style="color:#3a3a3a;font-family:'PT Sans', Helvetica, Arial, sans-serif;font-size:14px;font-weight:bold;">Liz Edwards who was found with her daughter in the house they lived in</span>© Provided by Mirror Liz Edwards who was found with her daughter in the house they lived in

The boy, who is now aged 15, admitted murdering the Elizabeth and Katie at Nottingham Crown Court, making him one of the youngest ever in Britain to admit double murder.

The 15-year-old girl, who cannot be named for legal reasons, admits manslaughter but denies murder.

<span style="color:#3a3a3a;font-family:'PT Sans', Helvetica, Arial, sans-serif;font-size:14px;font-weight:bold;">Katie Edwards was stabbed in her bed</span>© Provided by Mirror Katie Edwards was stabbed in her bed Her trial was told police discovered Elizabeth and Katie’s bodies in their blood-splattered house three days after the killings.

Peter Joyce QC, prosecuting, said the boy used a “large kitchen knife” to stab both victims “within moments” of each other.

He told jurors: “The mother was killed first while Katie slept in a nearby bedroom. They were both stabbed through the throat.”

The boy armed himself with four knives and chose the largest weapon to carry out the killings, the court heard.

Mr Joyce said the girl waited in the bathroom during the murders because she “did not like the smell of blood”.

The court heard they decided to stab both victims in the throat so that no noises would be heard from them.

Mr Joyce said: “The defendants had discussed how to kill them and had spoken about stabbing them in their necks in order to damage their voice boxes so they wouldn’t make a noise.”

Elizabeth and Katie were smothered with their own pillows after being brutally stabbed, it is alleged.

Jurors were told the girl listened to them “struggling and gurgling” as they were murdered in the semi-detached property.

The two suspects were arrested after police broke into the house and discovered the bodies in two upstairs bedrooms.

Mr Joyce said the pair had “taken a bath together to wash off any blood and watched Twilight” after the slayings.

<span style="color:#3a3a3a;font-family:'PT Sans', Helvetica, Arial, sans-serif;font-size:14px;font-weight:bold;">House in Spalding, Lincolnshire, where the bodies of Elizabeth Edwards and her daughter Katie were found</span>© Provided by Mirror House in Spalding, Lincolnshire, where the bodies of Elizabeth Edwards and her… In police interviews the girl said the plot was hatched four days earlier and further discussed in a McDonald’s.

Jurors were told Elizabeth suffered five knife wounds to one hand - suggesting she attempted to fight off her killer.

Katie was stabbed twice in the neck - with one blow so “severe” it penetrated a bone in her spine.

Sgt Christopher Fletcher, from Lincolnshire Police, told jurors of the moment he discovered the teen’s body under a sheet.

He said: “I was hoping that she was asleep. I was pulling her and shouting, ‘Wake up.’

“The sheets came off and I could see the torso of a young person. I touched her. She was cold and rigid.”

Mr Joyce said the girl does not deny being involved in the killings and “wanted them to happen”.

But he told the court she claims her “mental condition at the time reduces her responsibility from murder to manslaughter”.

The prosecutor said both are equally guilty of murder and had not shown a “hint of remorse” following the killings.

He said she “held a grudge” against Elizabeth and agreed with the boy to kill both her and her daughter Katie.

“They were serious in their intention,” said Mr Joyce. “They meant it to happen.

The girl, wearing a grey cardigan and black trousers, sobbed in the dock as the prosecution opened their case.

She denies two counts of murder.

The trial continues.

source:msn.com