Dennis Shelby, 24, was killed in a drive-by shooting in the early hours of an October morning in 2014 on Detroit’s northwest side. A barrage of gunfire struck the house while he was inside with his mother, her boyfriend, and his nephew; the others were unharmed.

Weeks earlier Shelby had been the victim of an armed robbery and was preparing to testify in court against the men who had taken his medication. His mother, Valerie, says he had been receiving threats and believes he was killed to prevent his testimony. Shelby was a father of five, including an infant about six months old.

No arrests or public identification of suspects have been announced in the years since the shooting. Does anyone have information about Shelby, his case, or what happened that night?