Senior Constable Gunwinder Gill told the court that the man had decided to punch the victim even though he later told police he had seen the potential consequences of one-punch attacks in the media. He was concerned that even if he returned to live with his family "he might do it again" if released on bail.

Senior Constable Gill was also concerned that, given the man had previously used social media to contact one of the witnesses to ask after her welfare, he may try to do so again.

Mr Vincec, who has been charged with manslaughter over the attack, cried during his bail hearing on Tuesday, appearing in the Melbourne Magistrates Court from custody via video link.

Magistrate John Bentley said it was a "difficult case" and that he was concerned about Vincec's behaviour, but granted him bail, on the condition he live with his partner, who is the mother of his three children, until his next court appearance on June 23. Mr Bentley said Vincec had been candid about his problems with drugs and alcohol, and was willing to undergo treatment for them.

He also said he was young, had strong ties to Victoria and support from his family in the community.