Calvin Smith was 19 when he was found shot to death in Baton Rouge, Louisiana, on January 11, 2015. The Baton Rouge Police Department asked the public for information as the investigation began, and the case remained an open and painful matter for Smith’s family for years.

A grand jury later returned an indictment charging a man named Carlos Heard with Smith’s murder, moving the case from an unsolved homicide into a criminal prosecution.

Did anyone in Baton Rouge around January 11, 2015, see or hear anything that could help explain what happened to Calvin Smith?