Antoine Charles Thomas Jr. was 16 when he was shot and killed on August 9, 2009, at his family’s home in the 3700 block of Chartiers Avenue in Pittsburgh’s West End. He was in the backyard with family when a single gunshot struck him in the back, killing him at what should have been a safe place.

The killing occurred during a violent spell in the city that summer, with several shootings affecting young people. Investigators had not announced any arrests or identified suspects as of the most recent update, and key circumstances around who fired the shot and why remain unclear.

If anyone knew Antoine, saw activity in the 3700 block of Chartiers Avenue on August 9, 2009, or has information that could help investigators, please come forward.