Police are investigating the circumstances that led to the death of a man at St Bartholomew's House in East Perth.
At around 4:50pm yesterday the body of a 55-year-old man was found inside a residence at the short term accommodation service.
Homicide Squad investigators would like to speak to a man who was seen in the area at the time.
They believe he may be able to assist with their inquiries.
Anyone with information regarding the incident, or who can identify the man pictured should contact Crime Stoppers on 1800 333 000 or make an online report.

Picture: WA Police.
Women injured in serious North Dandalup crash
Daughter of man allegedly stabbed to death in East Rockingham pays tribute to father
Peel Thunder claim fourth WAFL premiership
Man dies after suspected stabbing in East Rockingham
City of Rockingham cracks down on illegal dumpers
Missing Mandurah girl found safe and well
Police hunt for man who threatened staff with knife during Falcon armed robbery
Authorities descend on Memorial Drive homeless camp, move on notices issued
Locals asked to have their say on new concept designs for Lakelands Youth Park