As of now, there is no publicly available information regarding any arrests or identification of suspects in connection with Gregory Brown's death. The case remains unsolved, and details about potential suspects or investigative leads have not been disclosed.
The Chicago Police Department provides an online Adult Arrest Search tool, which offers public records of individuals arrested by the department. However, a search of this database did not yield any information related to arrests associated with Gregory Brown's case. ((https://www.chicagopolice.org/adult-arrest-search/?utm_source=chatgpt.com))
Despite the passage of time since the incident, the lack of available information suggests that the investigation has not led to any publicized developments. The absence of updates underscores the challenges that law enforcement agencies often face in solving such cases.