Christian Bandemer was 16 when he was fatally shot on June 3, 2016, in the Bridgeport neighborhood of Chicago. He was with friends when the shooting occurred. Early reports suggested the shooting may have been accidental, but authorities later charged 17-year-old Anthony Mendoza with first-degree murder after a Snapchat video surfaced in which Mendoza admitted to killing Bandemer; that video was taken in the back of a police car after Mendoza’s arrest.

Officials said the shooting may have begun after a dispute or mishandling of a firearm. Friends and family remembered Christian for his positive personality and described deep sorrow after his death.

Does anyone who knew Christian or witnessed the events that day have information that could help clarify what happened?