The house in question, a home in the 5500 block of N. Milwaukee Avenue in the Lakeview neighborhood of Chicago, had been empty for months.
But in the weeks leading up to the shootings, neighbors noticed that the exterior of the home had changed.
The windows were boarded up, there was no wallpaper and the wood floors had been stripped bare, the homeowner’s father told WLS-TV.
“My wife and I, we were in the kitchen, and the windows were gone,” the father said.
“We called the police and they said the house was gone.”
Waukesha County sheriff’s deputies found the bodies of five people inside the home on Sept. 16, 2016.
In a press conference last month, sheriff’s Sgt. John Kostka described the house as a “shooting family home,” where two young boys were staying with their mother and other family members.
According to a police report, the children, ages 4 and 7, lived at the home with their aunt and uncle.
After the shooting, neighbors told authorities that the family’s father and brother were seen wandering around the neighborhood in a white pickup truck with a license plate matching the description of the vehicle.
Kostka said investigators were still working to determine how the truck was found and how it was able to get away from the scene.
One neighbor said the home was on the second floor, with a “large” backyard.
Investigators also found a shotgun and ammunition on the property, and found evidence that the men had been shooting at other homes.
The family’s mother was in critical condition at Advocate Illinois Masonic Hospital on Friday, the sheriff said.
No arrests have been made, and investigators are still working on other clues.