The wife of poison plot GP is standing by him despite his 31-year sentence for attempted murder.

Kwan, 53, must wait before he can be considered for parole. But his wife launched an extraordinary defence of her husband of 14 years, saying she will be waiting for him when he gets out. The once-respected GP posed as a community nurse in a woolly hat, tinted glasses and surgical mask to jab his mum’s partner with pesticide iodomethane.

But in her first interview about a crime which has shocked Britain, his wife told the : “I don’t believe he intended to kill him.” Patrick O’Hara, 72, still suffers post-traumatic stress disorder due to his ordeal. Kwan travelled from his house in Ingleby Barwick, Teesside, to his mum Jenny Leung’s home on January 22.

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He injected Patrick with the poison after arranging an appointment for a Covid vaccine in advance using fake letterheads.

Kwan’s wife, who we have agreed not to name, said: “I really cannot find a man to compare to Tom, in his heart he is very, very good. I don’t blame him – I love him, trust him, and will be here for him until the end. I am going to be buried alongside him.

“Our son goes with me to prison to see Tom. I tell him everything and I hope he will understand his dad.”

Kwan changed his plea to guilty on October 7, after his trial at Newcastle crown court had begun. His wife said he had been attacked while on remand in jail, adding: “He decided that he wanted to get all this over with.”

Sentencing Kwan on Wednesday, Mrs Justice Christina Lambert said she had no doubt the £140,000-a-year GP was motivated by financial gain. His mother had updated her will to allow Patrick to live in her home in Newcastle in the event of her death, delaying Kwan’s inheritance.

His wife told how Kwan’s behaviour changed just before last year, as he plotted the murder bid.

She said: “He was very nervous, he was sweating at night. He was not sociable, he liked to work but he did not have any social life, he is a very private man. Our married life was very, very happy, he was a very good doctor. I think he had a mental illness but as a GP, he did not want to book an appointment to seek help.”

Though she intends to stand by her husband, they have cut all ties with his mother, saying her husband wanted more love from his mum.

His wife said he was bullied at school, adding: “He felt very lonely and helpless. All his life, he was looking for his mother’s love and never found it.

“He always believed that she loved others more than her own child. I feel so sorry for Tom, that is why I will wait for him and give him a good life in the end. If I leave him, his life will be too sad, I cannot do that to him.”