A Canadian jury has found a man guilty of manslaughter for killing another man with a single punch in a Starbucks.

Lawrence Alvin Sharpe, 41, was convicted on Saturday in connection with the July 2017 death of Michael Page-Vincelli, 22, in Burnaby, British Columbia, a suburb of Vancouver.

The same jury acquitted Sharpe's girlfriend, 36-year-old Oldouz Pournouruz, of provoking the attack, after the court heard that she had goaded Sharpe to beat up Page-Vincelli after her own dispute with the man.

The incident unfolded in the parking lot of a shopping center, where Pournouruz and Page-Vincelli got into a verbal dispute while her boyfriend ran inside a bank.

Lawrence Alvin Sharpe, 41, is seen leaving court last month with his girlfriend Oldouz Pournouruz, who claimed the victim had called her a 'dirty immigrant'

Michael Page-Vincelli, 22, died after Sharpe sucker punched him in a Starbucks over a dispute the victim had with Sharpe's girlfriend moments earlier

Witnesses said they saw Page-Vincelli and Pournouruz shouting at each other, reportedly after he took issue with her after she tossed a cigarette butt on the ground.

Pournouruz claimed that Page-Vincelli called her a 'dirty immigrant' and told her to return to her home country before flicking his own lit cigarette at her.

The court heard that Page-Vincelli walked away from the argument and went into a nearby Starbucks, while Pournouruz ran inside the bank to tell Sharp of the dispute.

Surveillance video evidence from inside the coffee shop shows the couple walking into the Starbucks, where Pournouruz appears to point at Page-Vincelli.

Sharpe is seen sucker punching the 22-year-old, who falls backwards. As he fell, Page-Vincelli struck his head on the ground or possibly a counter, fracturing his skull.

He was rushed to a hospital, but later died of his injuries.

The Starbucks where the altercation occurred is seen. Page-Vincelli had a dispute with Sharpe's girlfriend in the parking lot, where she said he called her a 'dirty immigrant'

Sharpe claimed that he had only punched Page-Vincelli in self-defense, as the younger man was advancing toward him, but the jury found that the video evidence contradicted that claim.

Steffany Page, the victim's mom, told the Vancouver Sun that she was unhappy that Pournouruz was acquitted.

'At the end of the day, my son is gone,' she said, adding that she didn't feel justice was done.

She said she expects Sharpe may get a few years in jail and that felt 'that's not fair for us.'

Sharpe is currently free on bond until his sentencing hearing, which is scheduled for May 1.