Hemel dad stabbed his wife and daughter to death before setting himself on fire at family home

The reason behind the attack 'remains a mystery'
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A man from Hemel Hempstead, with a history of anxiety, stabbed his wife and their grown up daughter to death, before killing himself at the start of last year’s national lockdown.

Gary Walker was known to be worried about the pandemic and the prospect of having to work from home, and had even contacted his GP days earlier.

But why he launched into a frenzied attack on Sunday, March 29, at the family home, stabbing his wife Caroline 39 times and his daughter Katie 38 times, remained a mystery yesterday (Thursday) when an inquest was heard into all three deaths.

Herts Coroner's CourtHerts Coroner's Court
Herts Coroner's Court

The inquest heard that, having stabbed the mother and daughter, Mr Walker fetched a bottle of paint brush cleaner from his garden shed.

Then, back inside the house and just feet away from the lifeless bodies of his wife and daughter, he poured the flammable liquid over himself and, using a kitchen lighter, set himself on fire.

Neighbours raised the alarm when they saw smoke coming from a bathroom window at the front of the house in Stuart Close, in Hemel Hempstead, at around 12.30pm on March 29 last year.

Firemen who forced their way into the property, situated in a cul-de-sac, found the badly burnt body of the 57-year-old husband at the foot of the stairs.

Making their way through thick black smoke that had engulfed the house, they found the 50-year-old wife’s body in the living room near the sofa and upstairs they located the body of animal loving Katie, 24, in a bedroom where she kept some of her pets.

At the inquest in Hatfield, the couple’s son Christopher and his partner along with a relative of Mrs Walker were the only members of the family to to attend.

The couple’s other daughter Sarah was not present.

The Senior Coroner for Hertfordshire, Geoffrey Sullivan was told Gary Walker and his wife had lived at the house for 27 years and had raised their children there.

They were a well liked family in the street and Gary was a quantity surveyor while his wife had previously worked at Waitrose. Katie worked as a kennel assistant.

The hearing was told that the husband did suffer from bouts of anxiety from time to time, that in the main, were work related and often to do with presentations he had to make.

He had been prescribed medication in the past by his GP and on one occasion when the prospect of jury service had worried him.

The inquest then heard how on March 23, last year Gary Walker again contacted his GP once more with anxiety issues that had been triggered by the coronavirus pandemic.

He was experiencing poor sleep.

Mr Sullivan was told that Caroline Walker had suffered from depression in the past.

The court heard that as a result of the deaths of the three a murder investigation was launched by detectives in a bid to piece together what had happened.

Detectives Constable Jason Rice who had conducted background enquiries into all three said evidence had been uncovered to show the wife had racked up debts of around £20,000 which her husband was unaware of.

The officer said the husband had been able to manage his anxiety and had in the past been given some counselling.

He said the coronavirus pandemic had had an impact on the husband’s mental state and the fact that he was having to work from home - something he was not use to.

Even so the inquest heard he appeared to be happy around the house and doing jobs.

Coroner Mr Sullivan was then told how on the morning if Sunday, March 29, last year Caroline Walker briefly left her home for around five minutes to call at her neighbours who lived opposite.

She came away with £70, which neighbour Peter Downer had given her to order a speaker for him on eBay. Caroline returned home around 10.30am and was not seen alive again.

The court was told it was Mr Downer who phoned the emergency services around two hours later after smoke was spotted coming from a bathroom window.

Two fire crews reached the house minutes later and inside made the grim discoveries.

It was quickly evident nothing could be done for the husband, such was the state of his badly burnt body.

Firemen removed the bodies of the wife and daughter to outside the house where paramedic were waiting.

Both women had suffered defence wounds and lacerations to the arms and hands indicating that they had tried to fend off the attack.

Postmortems carried out showed Mr Walker had died from the effects of the fire while his wife and daughter had died from stab wounds to the chest causing internal damage to their hearts and lungs.

The forensic examination of the house revealed tell-tale blood spots from the rear of the property into the back garden leading to the shed.

It showed that, having killed his wife and daughter, Mr Walker had gone to the shed to fetch a bottle of paint brush cleaner and then returned to the house with it.

Then, either standing or seated at the foot of the stairs he poured the liquid over himself before using the lighter to set himself on fire.

Coroner Mr Sullivan said the Walkers had been an “entirely normal and pleasant family”.

Over the years he said there had been no history of domestic violence in in the house and their neighbours thought them to be considerate and helpful.

“He was working from home. This was causing him some anxiety but nothing out if the ordinary in the circumstances.” he said.

Mr Sullivan said that, even the day before, the couple's other daughter Sarah had not noticed anything out the ordinary concerning her parents.

He said sometime between 10.30am and 12.30pm on that Sunday, Mr Walker had attacked his wife and daughter.

“He stabbed them a large number of times causing their deaths.”

He went on “The reason for these tragic events remains a mystery.”

Family, friends and work colleagues, he said, had been unable to provide any explanation for what occurred that day.

He recorded a verdict that Mr Walker committed suicide and that Mrs Walker and her daughter had been unlawfully killed by him.

Ask for help

Suicide is preventable and support is available, such as Samaritans’ helpline. When life is difficult, Samaritans are there – day or night, 365 days a year. You can call them for free on 116 123 or email them at [email protected]