Michael Polston was 18 when he was killed in Baltimore on July 27, 2015. His death followed a violent street altercation that prosecutors later called a cowardly act of street justice; investigators described the shooting as retaliation.

The Baltimore Police Department conducted interviews and collected evidence that led to an arrest. Rayshard Johnson was taken into custody after a police chase in the area of the shooting on West North Avenue. In a recorded phone call, Johnson said his plan was well conceived and that he could not shoot Polston in the head because Polston had hidden behind a girl.

Johnson pleaded guilty to first-degree murder and received a 45-year prison sentence for the fatal shooting. Did anyone who knew Michael or who was in that neighborhood that night see or hear anything that could fill gaps in the timeline?