A primary school teacher stabbed her partner in the neck and buried his body in their garden after telling her headteacher she had Covid-19 and needed to self-isolate, a court has heard.
Prosecutors allege Fiona Beal penned a “chilling” confession, describing her “dark side” as ruthless and explaining how she hid a knife in a bedside drawer and got Nicholas Billingham to wear an eye mask before his pre-planned murder.
Beal, 49, of Moore Street, Northampton, denies murdering 42-year-old Mr Billingham, whose partly mummified remains were discovered in March last year, four-and-a-half months after he was seen at a business meeting.
Jurors were told the notebook contained a claim that Beal had been spat on and threatened during sex and subjected to cruel and belittling treatment.
Alleging that Beal killed her long-term partner in their bedroom on November 1, Mr Perian told the court: “Nicholas Billingham whilst still in a relationship with the defendant had cheated on her with other women
“She (Beal) believed he was cheating on her again.”
But instead of leaving him, Mr Perian said, Beal formed a plan on how and when to kill him, where to conceal his body, how to cover up and explain his disappearance to others, and how to explain her own absence from work when she killed him.
The prosecutor added: “The prosecution suggests from the evidence gathered it is very likely, she killed Nicholas Billingham during the evening of the 1st of November 2021 in their bedroom.”
Having killed Mr Billingham, the Crown alleges, she tied up and wrapped his body, buried it in the garden, and painted and cleaned the bedroom where the killing had taken place.
She is then alleged to have told others that Mr Billingham had left her for another woman, and to have used his phone to send messages to friends and work colleagues, pretending that he was still alive.
She was then taken to the local hospital and detained under the Mental Health Act.
Mr Perian added: “The police recovered a notebook from the place where she had been renting that detailed a chilling account of how she had planned and killed someone, but it did not contain the name of the person she had killed.”
Northamptonshire Police were then contacted, the trial heard, and visited Beal’s home, finding a bloodstained mattress in the basement, and an apparent blood stain on the bed frame in the master bedroom.
Part of the back garden was also dug up, revealing “partially wrapped and partially-clothed” human remains.
Clothing thought to be a dressing gown was recovered, along with black plastic wrapped around the victim’s head.
A pathologist concluded that the cause of Mr Billingham’s death was a single stab wound to the right-hand side of his neck, which cut through the jugular vein.
Records showed Beal, who worked at Northampton’s Eastfield Academy as a Year 6 teacher, was absent from work between November 1 and November 12.
The jury was told Beal’s headteacher had been in regular contact with the defendant during her period of “Covid sickness” and that when she returned to work she said her partner had left her, but there were no concerns about her work.
After going on a school trip to London in late February, Beal sent her headteacher another message saying she was ill.
She was subsequently traced by police to Cumbria, where she had checked into the lodge on March 6 last year.
On March 15, the court was told, police attended the lodge after being contacted by a concerned family member and found an apparent suicide note and a notebook.
Beal was admitted to the Royal Lancaster Infirmary, where officers read the notebook and formed the opinion that the defendant had killed her ex-partner.
The notebook, part of which was read to the jury by Mr Perian, contained a reference to the 1991 film Thelma & Louise.
It read: “Everything changed last year. There’s a quote from ‘Thelma and Louise’ that feels appropriate, ‘Thelma: “You be sweet to them, especially your wife. My husband wasn’t sweet to me.’
“I suppose I ought to explain what happened to get me to this point. My mental health had been deteriorating. Whenever he was cheating he would up the ante on belittling, moaning and criticising.”
“I have to confess. Ok here goes. October 2021. He spat on me and threatened me during sex. I thought about leaving but the things he said and did fuelled my dark side – I call her
Tulip22, she’s reckless, fearless and efficient. Ruthless.
“I started plotting as Tulip22 after he’d gone to bed. I could no longer sleep in the bed due to my breathing being too loud or I moved too much or I was snoring or etc etc.”
The court heard the notebook entry, which referred to 17 years of “him” being argumentative, mean, cruel and belittling, continued: “I knew I couldn’t let him get away with it. Halloween sealed it. He was vile.
“That night I planned. Covid rules meant I had a guaranteed 10-day isolation period from positive symptoms.
“I called (Beal’s headteacher) on the Monday and said we’d tested positive and had symptoms. He went to work. Tulip22 smoked and planned. I’d planned it mentally so many times before.
“I had a bath. I left the water in. I encouraged the bath with the incentive of sex afterwards.
“While he was in the bath I kept the knife in my dressing gown pocket and then hid it in the drawer next to the bed. I brought a chisel, bin bag and cable ties up too.
“I got him to wear an eye mask. It was harder than I thought it would be. Hiding a body was bad. Moving a body is much more difficult than it looks on TV.”
The trial continues.