Joseph Esmaili Found Guilty Of Surgeon's One Punch Manslaughter

A man who punched a surgeon at a Melbourne hospital has been found guilty of the doctor's manslaughter after a four-week jury trial.

Patrick Pritzwald-Stegmann, 41, fell and hit his head after being struck at Box Hill Hospital in May 2017 and died about a month later when his life support was terminated.

Joseph Esmaili threw the fatal punch and on Wednesday the 24-year-old was found guilty of the killing by a Supreme Court jury.

Joseph Esmaili. Image: AP

Pritzwald-Stegmann had approached a group including Esmaili and asked them to stop smoking near the hospital entrance.

The men argued and witnesses recounted subsequently hearing a "huge thud" as the surgeon hit the ground.

"I saw and heard the noise of a ten-pin bowling ball hitting the floor," one man told the jury.

Melbourne heart surgeon Patrick Pritzwald-Stegmann. Image: PR Handout Image

Esmaili fled the scene while staff from the hospital rushed to help their colleague Pritzwald-Stegmann.

A Supreme Court jury returned a guilty verdict on Wednesday after two-and-a-half days of deliberations.