Malik Blackstock was 18 when he was killed by a single gunshot to the chest on April 7, 2015, in Chattanooga, Tennessee. Friends said he was expecting a daughter in July and was trying to turn his life around before the shooting.

Nineteen-year-old Julian Pasley was arrested in connection with the killing and charged with second-degree murder. Some witnesses reported Pasley told them the shooting was accidental, saying a revolver discharged while he was playing with it; Pasley declined to give a statement to police. Prosecutors told a court a different story, arguing the shooting was intentional and gang-related and alleging Blackstock had been trying to leave Pasley’s gang to join a rival.

The case was presented to a grand jury. If anyone knew Malik, his whereabouts in Chattanooga that day, or has information about the shooting, please share what is known.