Police said the victims, 18 and 19 years old, were shot multiple times inside the home on the 22600 block of Brookwood Drive in Sauk Village. They were found around 9:30 p.m. Tuesday by a property owner showing the house to a potential buyer, police said.
Outside the home Wednesday, Genaro Galindo said he believes one of the men is his brother, Abel Galindo, who was lured from their home in Lansing for a deal that went bad.
"I thik they were buying a gun," said Galindo. "I don't know. It's crazy. I never thought it could happen to my brother.
"I heard a couple of shots," she said. "I just thought somebody was playing. We have a lot of people who throw fireworks all the time."
Neighbors said the property was a short sale and had been on the market for months but had seen a lot of traffic. Investigators said the victims' bodies may have been in the home for about a day.
Sauk Village police are investigating the killings as a double homicide.