WA police have received new information on the murder of Mandurah pensioner Robert Dalliston in 2009.
Major Crime Squad detectives now believe there a members of the public who can help in the investigation.
Mr Dalliston was last seen alive about 6pm on January 8, 2009, when he caught a taxi from the Silver Sands Tavern to his home. A concerned workmate found the 69-year-old dead inside his home on January 15.
Police believe Mr Dalliston was murdered while he slept.
Det-Inspector Gene Pears said detectives would be speaking with people who had interacted with Mr Dalliston in the days before he died.
“We believe there are a number of people who can help us bring this killer to justice.
“These people may have helped the killer," he said.
"They may have spoken to the killer immediately before or after the crime was committed.
"We urge them to come forward.”
A mobile police facility will be set up in Mandurah so members of the public can speak to police officers.
Det-Inspector Gene Pears said while all homicides where shocking, the murder of Mr Dalliston was particularly brutal.
In 2012 the State Government offered a $150,000 reward for information on the murder.
Anyone with information is urged to contact Crime Stoppers on 1800 333 000.