A GP who tried to kill his mum’s lover while disguised as a Covid nurse has admitted a second murder attempt using poisoned wine.
Dr Thomas Kwan, 53, and hairpiece as part of an “audacious” plan to murder Patrick O’Hara.
Thomas Kwan wore a fake beard and wig to poison his stepad
Patrick O’Hara didn’t die but developed a flesh-eating disease
He has admitted more attempted murder charges
The GP wanted to inherit mum Jenny Leung’s estate but the pair had fallen out over her plans to leave her home to Patrick instead.
Patrick, 71, was lucky to survive after the toxin caused a “rare and life-threatening flesh-eating disease”.
Kwan was jailed for 31 years and five months last November after pleading guilty to attempted murder.
He has now admitted a second attempted murder charge at Newcastle Crown Court.
The court heard Kwan set up a fake wine club called Northern Wine and Drinks Tasting Gentlemen’s Club and contacted Patrick.
He sent him between 18 and 21 bottles, some of which were poisoned with thallium – a tasteless toxic metal nicknamed the “poisoner’s poison”.
Patrick drank some of the bottles and gifted one to Torquil Gundlach, who also consumed some of the tainted wine.
Peter Makepeace KC, prosecuting, said two bottles recovered contained poison and there was evidence that a third caused Patrick to fall ill.
The wine plot spanned September 2022 to January 2024 – when Kwan carried out his Covid jab murder bid.
That took place on January 22 when Kwan left his home in Ingleby Barwick, Teesside, in his Yaris fitted with false plates.
CCTV then showed him checking into a Premier Inn in Newcastle under a false name.
A few hours later, Kwan left the hotel in disguise – complete with long coat, surgical gloves and a face mask.
The court was told he travelled to Patrick’s home and claimed he was from the NHS in a “broken English accent”.
He then told the pensioner he was going to give him a Covid booster injection.
The grisly plan was so successful even Kwan’s mum was “oblivious” to the fact the so-called nurse was her son.
While administering the injection, Patrick yelped out in pain and shouted “bloody hell”.
Doctors later discovered he was suffering from necrotising fasciitis – a “rare, life-threatening flesh-eating disease”.
Patrick needed multiple surgeries to remove “very considerable portions” of his arm.
Hong Kong-born Kwan had developed an “encyclopaedic knowledge” of poisons and had studied how to get away with murder.
He had been collecting dangerous chemicals including liquid mercury, sulphuric acid and arsenic in the build-up to the horror.
Officers also found castor oil beans in his garage and a recipe for manufacturing ricin from the beans.
A MoD chemical weapons expert was brought in but was unable to establish exactly which poison was used to inject the victim.
Northumbria Police announced last month that Kwan faced two further charges.
It came after he was struck off the medical register following a hearing of the Medical Practitioners’ Tribunal Service.
Kwan was filmed checking into a hotel before injecting his mum’s lover with the poison jab 
