Primary school teacher admits murdering her 'cheating' boyfriend and burying his body in their garden: Killer, 50, lured lover, 42, to bed for sex, tied him up with cable-ties and stabbed him in the neck 'in cold blood'

A primary school teacher has pleaded guilty mid-trial to the murder of her cheating boyfriend, who she buried in their garden. 

Fiona Beal, 50, lured 42-year-old builder Nick Billingham into the bedroom for sex then knifed him in the neck when he was tied to the bed on November 1, 2021.

Beal planned the murder in advance by writing in a journal as her alter ego, 'Tulip22', and purchased a knife

The 'highly capable' teacher then told friends the pair had tested positive for Covid so that she would not be disturbed while she buried Mr Billingham in the garden of their Northampton home.

His mummified body was found four months later wrapped in sheeting in a makeshift grave after Beal's journals were found by police.

Judge Mark Lucraft told Beal today: "You have this morning pleaded guilty to murder, which as you have no doubt been told, carries a sentence of life imprisonment."

Beal then spent months using her partner's phone to message his friends and relatives pretending he was still alive and had moved in with another woman.

She originally manslaughter but denied murder, claiming 'loss of control'.

Mr Billigham had affairs before and moved out of the home, but the couple had reconciled.

Prosecutor Hugh Davies, KC, told the Old Bailey: 'Central to the plan was knowing that after stabbing him, if she claimed she had Covid, she would have 10 days to bury him and cover up her crime.

'And that's exactly what happened. She was thinking about what time was best to do it, whether he would be snoring, but she knew or visualised it would be by stabbing him ''left to right, down slight right''. And that's what she did - she stabbed him in his jugular vein in his neck.

'On 1 November she manufactured a positive Covid test result-all you had to do was complete the NHS questionnaire online app self-report a positive test.

'There is no evidence she ever did a PCR test. Her actions in the next 10 days are wholly inconsistent with having the exhausting effects of Covid which she was claiming to be experiencing.'

He continued: 'She murdered him in their bedroom late on 1 November. The clean-up started as early as 01.07am on 2 November. Using her dead partner's account, and then hers on Amazon, she bought multiple cleaning products, including for Venetian blinds, a new mop and bucket, ultra heavy duty bin bags, a new mattress, bedding, clothing, wall art and mirrors.

'This is considered, controlled, conduct that is on the one hand intrinsically practical, and on the other indulgent.'

Beal had written in her journal that Mr Billingham asked 'why?' after she stabbed him, the court heard.

Mr Davies said: 'You are also likely to hear evidence from a psychologist and a psychiatrist.

'It is for you to decide whether her claimed loss of memory is false - there's no conclusive test for that. It is for you to decide the facts of the relationship, not experts.'

Beal will remain in custody and be sentenced on May 29 and 30.