Don MacMillan, 45, was found dead in Miami, Florida, on January 28, 2018, after a violent altercation that ended with a single gunshot wound to the chest. The shooting happened in the early morning in a residential neighborhood, where witnesses reported hearing a loud argument and a gunshot before calling police. Despite emergency care, MacMillan was pronounced dead at the scene.

Investigators described a complicated backdrop of personal and business conflicts. Initial inquiry focused on a heated exchange with an unidentified individual shortly before the shooting. Reports mention a former business associate who had ongoing financial disputes with MacMillan, and detectives also examined strained relationships with family members and acquaintances as potential motives.

A primary suspect was arrested; witnesses and circumstantial evidence were cited in reports, while the suspect denied involvement. Is there anyone with information about Don MacMillan’s movements or the people he was in conflict with around January 28, 2018?