In a bizarre twist to investigations into the death of British tourist Brian Hagland, a police source has revealed that the 28-year-old may have been hit by a bus during his struggle with two assailants. The disclosure has raised the possibility that Hagland died from injuries caused by the vehicle and not the attackers. The London postman was beaten and kicked by two men as he left a Bondi Beach cafe with his fiancee on Saturday. His death has sparked an extensive investigation and widespread media interest. The police source said investigators were pursuing the possibility that Hagland and one of his assailants were hit by a bus. During the attack, Hagland's fiancee left the scene to get help. There have been reports that a bus driver and several residents have offered information. The police source said any firm conclusions depended on more definitive autopsy reports. Meanwhile, a 22-year-old man who turned up at Bondi police station has been helping police with their inquiries.