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.
Construction contract awarded for Kwinana Freeway upgrade
Port Kennedy humpback whale buried at landfill facility
Secret Harbour by-election: Where to vote on August 29
Mandurah man charged over role in alleged sophisticated cybercrime syndicate
Locals urged to look out for man who removed electronic monitoring device
Four charged over brutal Warnbro home invasion allegedly linked to illicit tobacco trade
UPDATE: Sadly the whale has died overnight
City of Rockingham records steep increase in animal cruelty complaints related to untreated medical conditions
Accused dirt bike hoons charged by Mandurah Police