Lonnie Hartman, a 35-year-old African American man, was found with multiple gunshot wounds and died on October 27, 2017, in Chicago, Illinois. Police classified the death as a homicide and investigators described the case as complicated by conflicting witness statements and limited concrete evidence.

The Chicago Police Department pursued multiple leads, used forensic techniques including ballistics, and reviewed surveillance footage. A suspect was arrested and charged with first-degree murder; prosecutors are relying on ballistics and eyewitness accounts while the defense is challenging witness credibility and aspects of the evidence.

Family members have taken part in community vigils and worked with advocacy groups to draw attention to gun violence in the neighborhood. Does anyone have information about Lonnie Hartman, the events of October 27, 2017, or evidence that could help the investigation?