Four men have been charged over an incident in Victoria Street, Bunbury on Saturday, May 25, in which a 56 year old man received serious head injuries.
The man has since died in hospital.
A 27-year-old from Armadale, a 20-year-old from Australind, an 18-year-old from Carey Park, and a 26-year-old from Carey Park have each been charged with Grievous Bodily Harm.
They appeared in the Bunbury Magistrates Court on Monday, May 27, to reappear on Thursday, June 6.
Bunbury detectives are calling for anyone with information about the incident to come forward.
People can contact Crime Stoppers by calling 1800 333 000 or via crimestopperswa.com.au