Two Chicago newspapers that analyzed police data from Friday afternoon to early today called it 2016's deadliest weekend.
Chicago police couldn't immediately confirm that, though a spokesman said their weekend homicide count from Friday midnight through yesterday was 18.
Either way, the toll surpassed the Chicago Tribune and Sun-Times' analysis of holiday weekends when violence typically spikes.
The Tribune reports six people were fatally shot over Memorial Day weekend, five over Fourth of July, and 13 over Labor Day.
The October weekend deaths included seven people under 20 years old. Seventeen-year-old twin brothers were killed in a Sunday drive-by.