Corey Norah, a 40-year-old man, was killed at an auto repair shop in Dallas, Texas, on January 7, 2015. Law enforcement investigators worked the scene and pieced together evidence from the location of the killing.

One individual was arrested in connection with Norah’s death and later confessed to the homicide, a development that became central to the legal case. The situation underlines the challenges investigators face in violent-crime cases and the role of a confession in moving a case toward resolution.

If anyone knew Corey, saw him at that shop, or has information about the events of January 7, 2015, please come forward to share what you know.