We compile our own dataset using the following sources: Chicago Tribune, Chicago Sun-TimesHomicide Watch Chicago (no longer updated), DNAInfo Chicago (out of business), Chicago Redeye Homicide Tracker (long gone), NBC5 Chicago, Chicago Tribune’s Shooting Tracker (no longer updated) & Homicide Tracker (declared dead), Sun-Times Homicide Tracker, Cook County Medical Examiner, CPD’s Historical Data Set, City of Chicago Data Portal, Chicago Police Department Arrest Record Search, CPD CLEARMAP, Various CPD Dashboards, ISP Expressway Shooting Dashboard, CPD’s Media Major Incident Notifications and the needlessly woke Chicago Violence Reduction Dashboard.

Community areas and neighborhoods are determined by Crimeisdown.com’s most excellent Incident Map or the Chicago Tribune’s Boundaries App.

 Editor’s note: All murders are homicides, but not all homicides are murders. We count

Editor’s note: All murders are homicides, but not all homicides are murders. homicides, whereas the CPD counts murders. A homicide, or a non-fatal shooting, regardless of type or by whom, within the city limits of Chicago counts towards our total metric, including anything on the expressways. CPD-involved, ISP-involved and justifiable homicides all count. Reckless homicides may count if the Medical Examiner rules that the cause of death was a homicide. Suicides do not count. Additional definitions can be found on the Glossary page.