On March 15, 2020, officers in Gary, Indiana, responded to reports of shots fired in the 3500 block of Polk Street and found 25-year-old Arnell Lackey dead on a front lawn. The Lake County Coroner pronounced him deceased at 4:15 p.m., listing a fatal gunshot wound. The city recorded the death as its eighth homicide that year.

The Gary Metro Homicide Unit, assisted by the Lake County CSI unit, led the investigation. Police detained a person of interest who was a resident of the same block and questioned that individual, secured the scene and collected evidence. Public reports in the immediate aftermath did not confirm any formal murder charges, and investigators continued to seek information about motive and the circumstances that led to the shooting.

Anyone with information about Arnell Lackey or the events on Polk Street on March 15, 2020, is asked to contact investigators.