A man on a mobility scooter suffered life threatening injuries after being stabbed in the throat as part of a "revenge" attack over a woman, a court has heard.
The man in his 40s was on his scooter while talking to his partner in Prince William Close, off Elizabeth Close, in Hunstanton.
Norwich Crown Court heard Neil Donkin, 42, who knew the victim and had previously been in a relationship with the woman, approached the man and stabbed him.
Ian James, prosecuting, said the attack, which happened at 4.45pm in the afternoon, had a "certain ring of revenge about it".
Donkin had been seen by women in a flat overlooking the street and "appeared to have something in his hand" that looked like a knife.
One of the witnesses said "he's just stabbed him" to the other as Donkin came up to the victim and the woman.
Mr James said one of the women then saw the victim on the floor and having "obvious difficulty in breathing".
The ambulance service was called and on arrival notified police about the incident.
Mr James said Donkin was seen going to the flat of the victim's partner where a "blood-stained" knife was later found.
Donkin was not arrested at the scene but the day after the attack on August 22 last year.
The victim suffered life-threatening injuries and was initially taken to the Queen Elizabeth Hospital in King's Lynn before being transferred to Addenbrooke's Hospital in Cambridge.
Although the victim has not cooperated with police, medical records show he was put in a medically induced coma having received treatment for a wound which penetrated his windpipe.
The victim has not made a statement although the court was told the attack has left an "emotional and psychological impact" on him.
Donkin, of Saddlebow Road, Lynn, appeared at court on Thursday, September 12 for sentencing having previously admitted wounding with intent and possession of an offensive weapon.
Judge Andrew Shaw imposed an extended sentence of 16 years and four months - made up of 11 years and four months custody and five years licence.
He said the victim suffered "life threatening injuries" and "owes his life to the skill, care and determination of medical professionals" including paramedics, doctors and surgeons.
Stephen Mather, mitigating, said Donkin would "like to turn the clock back" but accepts there had been a "disagreement" between the two.
He said Donkin had intended to aim the knife towards his cheek although it ended up in his neck.
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