Gregory DeShun Paffumi was 19 when he was shot and killed at a late-night party in the 3800 block of Bennett Drive in Indianapolis in the early hours of September 25, 2015.

Investigators identified 25-year-old Daniel Roseboro of Indianapolis as a suspect and obtained an arrest warrant. Roseboro was arrested and charged in connection with the killing, but the prosecution’s case relied on a key witness who later relocated to Texas and declined to testify. Those evidentiary problems led to dismissal of the charges, leaving Gregory’s family without a legal resolution. The family has urged witnesses to break the code of silence that they say hinders justice.

If anyone attended the party that night or has information about what happened on Bennett Drive, can you share what you know with Indianapolis authorities?