Jacob Zamora, 18, was found in the hallway of an apartment building at 835 Edgebrook Drive in DeKalb close to midnight on January 23, 2020, with multiple gunshot wounds. First responders transported him to Northwestern Medicine Kishwaukee Hospital, where he was pronounced dead soon after.

Detectives identified and arrested an 18-year-old DeKalb resident, Adam D. Koertner, the following afternoon; he was booked into the DeKalb County Jail and charged with four counts of first-degree murder. Court records show Koertner later pleaded guilty to first-degree murder and was sentenced by a DeKalb County judge to 30 years in the Illinois Department of Corrections. The police account did not provide a detailed public motive, and no other suspects were announced.

If anyone knew Jacob, his movements that night, or has information about the shooting, please share what you know with investigators.