The man's body was discovered in a home in the 3700-block of N. Kilpatrick in the city's Portage Park neighborhood.
The building is the home of Henryka Waskowski's son.
She owns Henryka's Bar on the city's Northwest Side.
Police say she was chased and killed early Monday morning in the 5700-block of Irving Park.
Investigators are not disclosing how Waskowski and the man knew each other.