Credits: Brian Donogh/Winnipeg Sun
The victim has been identified as Ron McKinnon, a resident at the location.
According to court records, he was currently up on charges of theft, fraud and possession of goods obtained by crime, and has a record for minor convictions.
Officers found McKinnon's body after being called to the location in the 600-block of Balmoral Street near Cumberland Avenue about 4:30 p.m. Tuesday.
Police have yet to confirm that the death is a homicide.
"All I can say is that a serious assault occurred," Const. Eric Hofley said Wednesday.
It is believed McKinnon was beaten to death.
A male suspect fled moments before police arrived. Police have yet to identify him.
"They call it 'Murder Mansion' because one guy got killed and one woman (previously)," said passerby John Bouchie, who once lived in the home for four months.
"I didn't like it. There's dirty people there. They smoke up in the kitchen and all kind of things happen there."
A resident of the rooming house said police were called there earlier Tuesday because the suspect got into a physical fight with a couple of females. However, police said there was no information about a previous call to the same residence this week.