On the afternoon of January 20, 2015, a shooting in Cliftondale Park off Butner Road in Atlanta left 21-year-old Zack Mascio Knight dead. Knight, an African American man, was shot multiple times in the park. An acquaintance transported him to a nearby subdivision, where emergency services were called; paramedics took him to Atlanta Medical Center South and he was pronounced dead from his wounds.

Fulton County police opened an investigation into the killing. Motive and how many people were involved remain unclear. As of early 2026 the case is still open and no arrests or publicly identified suspects have been reported.

If anyone was in Cliftondale Park or the surrounding neighborhood that afternoon and saw anything unusual, please come forward with tips or information that could help investigators.