Ashton Dior Noah Hornsby, 17, was shot and killed in the early hours of March 9, 2025, following an after-prom party in the West Cobb Plaza parking lot on New Macland Road in Powder Springs, Georgia. Emergency responders found Ashton with multiple gunshot wounds to his chest; he was taken to Cobb Wellstar Hospital and pronounced dead. He had been a student at Campbell High School, and the school made counseling available after the loss.

Police quickly identified an 18-year-old suspect, Carlos Diaz Jr., also from Smyrna. Arrest warrants say Diaz told investigators he believed Ashton intended to confront him over a previous incident, that Ashton followed him and lifted his shirt, and that Diaz fired two shots though he admitted he did not see a weapon; warrants state Hornsby was unarmed. Diaz was arrested and charged with malice murder, felony murder, aggravated assault, and possession of a firearm during the commission of a felony, and he was booked into Cobb County jail without bond.

Was anyone at the after-prom party or the West Cobb Plaza parking lot that night able to see what led up to the shooting or to assist investigators?