The man who killed a father-of-two over a feud between two families while the victim's daughter was buying sweets nearby "showed no remorse" at his sentencing.
Mohamed Al-Zufairi was stabbed in the heart Wealdstone High Street outside Poundland by 27-year-old Abraham Omotoso, of Tudor Gardens, Harrow, on February 27 at about 6.50pm.
The 34-year-old was taken to a west London hospital but died the following day.
Omotso, was found guilty of manslaughter at the Old Bailey and sentenced to 18 years in prison at the court on Friday (October 13), having been found not guilty of murder.
The insurance worker had initially claimed to have nothing to do with the attack but later said he had been acting in self-defence.
Witnesses described hearing a short argument between Omotoso and the victim before he stabbed him and ran away to a black Range Rover and drove off.
Mohammed's eight-year-old daughter had been inside the shop buying sweets and did not witness her father being stabbed in the chest.
The day after stabbing the doting father in the heart, Omotoso attempted to board a flight from Gatwick to Lagos, Nigeria, having purchased a one-way ticket with cash.
Airline staff became suspicious when he appeared travelling alone with just hand luggage.
'This was a brutal attack'
Detective Inspector Jon Meager, the investigating officer from the Met’s Homicide and Major Crime Command , said: "This was a brutal attack in a busy high street which resulted in a young father losing his life.
"While his daughter did not witness the assault, it is something that is undoubtedly going to affect her for life.
"Omotoso has shown no remorse for his actions on that day.
"I hope his conviction gives Mohamed’s family a measure of closure and comfort."
CCTV footage captured Omotoso walking "purposefully" towards Mohammed, as well as him fleeing the scene in his Range Rover.
'The streets need to be made safe'
Judge Nicholas Cooke said: "This was an example of a knife fatality taking place in a busy high street.
"Members of the public saw the aftermath and parts of the incident - it will probably live with them forever.
"The streets need to be made safe.
"There is a harrowing further aggravating feature in this case and it is this - although not physically present, the victim had shortly before been with his seven- or eight-year-old daughter."
He added: "There is another young child who will not remember his father."
Judge Cooke also thanked airport staff for their "quick thinking" in thwarting Omotoso's attempt to flee the country.
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