A 24-year-old man from Kirup has had a charge of grievous bodily harm upgraded to murder following a fight in the town centre last month.
The 56-year-old victim was rushed to Royal Perth Hospital in a critical condition where he died 11 days later.
It follows an altercation between two men in the Kirup town site on July 14.
As a result of ongoing investigations conducted by the Homicide Squad and Bunbury Detectives, a man has had a charge of grievous bodily harm upgraded to murder.
The 24-year old man is due to appear in the Bunbury Magistrates Court today.
Early voting for Secret Harbour by-election begins Monday
Welfare concerns for missing Swedish national last seen in Warnbro
Wanted man last seen in Golden Bay
Passenger critically injured in West Pinjarra crash
Unregistered painter fined for requesting hefty deposit from Singleton homeowner and not doing the job
Police hunt driver following dangerous Baldivis pursuit
Welfare concerns for boy last seen at Port Kennedy skate park
Rubbish truck catches fire in Baldivis
Driver injured in bus crash in Rockingham