David Michael Lyman was 28 when he was shot and killed on May 21, 1983, while working at Mark’s Discount Beverage on Park Road in Charlotte, North Carolina. He and a coworker, William Mack Robertson, were found by officers in the early morning hours with apparent gunshot wounds; Robertson had been working his first night on the job.

Investigators treat the case as a double homicide and believe the killings resulted from an attempted robbery during the store’s operating hours. The Charlotte-Mecklenburg Police Department has kept the investigation open as a cold case and a reward is being offered for information that leads to an arrest, but the murders remain unsolved.

Does anyone have information about Mark’s Discount Beverage on Park Road or recall unusual activity in that area on May 21, 1983?