Skeletal remains of a man and a woman were found in the basement of a Logan Square building late Monday night.
The man, believed to be in his 70s, died from gunshot wound to the abdomen, according to an autopsy. Cause of death for the woman, believed to be in her 20s, has not been released. Neither has been identified.
Neighbors said the abandoned and boarded-up three-flat, in the 2900 block of North Ridgeway Avenue, is frequented by squatters.
"I think it was homeless people, because we have a lot of homeless people around here," said neighbor Eduardo Garcia, according to CBS 2 Chicago.
Ald. Ray Suarez (31st) told Telemundo Chicago that he was saddened by the news, but said it speaks to the need for security at abandoned or foreclosed properties. A city council committee last month passed an ordinance that would require any corporation with an interest in a vacant, abandoned building to post guards at the property during certain hours.
Suarez said abandoned buildings are a haven for drugs, gangs and other criminal activity.
The home's owner died in a nursing home last year, records indicate. Neighbors said the building had been empty for about three years.