Rosemary Hill was brutally attacked and died of her injuries four days later (Image: Metropolitan Police / SWNS.COM)
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A man who "struggled with lockdown" bludgeoned his 87 year old neighbour to death with a cricket bat as she bent down to pick herbs from her garden.
Guy Douglas Unmack, 46, was found guilty of the murder of Rosemary Hill and told he faces life in jail.
The jury heard the attack, which happened around three months after the start of the first lockdown last year, had occurred after Unmack had been drinking.
Police later discovered more than 800 tablets, equivalent to 218 days of his prescription, suggesting he had also not been taking his medication for his diagnosed paranoid schizophrenia.
A witness, who saw the attack take place at about 5.30pm on June 21 2020, saw Unmack run from the pavement down the driveway of his own home and then back towards his home.
The woman, who watched inside a car, saw him come back seconds later holding a bat and walked up to Mrs Hill from behind and then struck her on the back of the head with the cricket bat.
Guy Douglas Unmack had been drinking before the attack, the court heard
(Image: Surrey Police / SWNS.COM)
Her mother, who was driving, sounded the horn which distracted Unmack before he ran away.
Guildford Crown Court was told Mrs Hill was rushed to hospital but she had suffered such serious brain injuries that she could not be operated on.
The retired teacher and musician was given palliative care and died four days later in hospital.
The court was also told her husband had died only five months earlier.
Unmack, who previously admitted manslaughter with diminished responsibility, is said to have just stood in the road as members of the public rushed to help the victim.
During police interview, he was found to have twice the drink drive level of alcohol in his blood.
Following being deemed unfit for questioning, he was sectioned under the Mental Health Act and subsequently moved to a secure hospital.
The case was heard at Guildford Crown Court
(Image: Surrey Advertiser)
Other neighbours told the court how Unmack's condition had deteriorated during lockdown and he had been frequently heard shouting outside his house.
One woman heard him shouting 'kill, kill, kill' outside his house in Reigate, Surrey, and appeared to be regularly drinking booze from early morning trips to the supermarket.
Senior Investigating Officer, Detective Chief Inspector Charlotte Rimmer said "Guy Unmack was found guilty of murder by the jury at Guildford Crown Court.
"He will next appear at Guildford Crown Court on 24 June 2021 to be sentenced. "