Chicago’s police review board released body camera video on Thursday of a police officer’s fatal shooting of a 13-year-old boy late last month. The Civilian Office of Police Accountability, an independent board that investigates Chicago police shootings, released the footage of the March 29 fatal shooting of Adam Toledo after allowing the boy’s family to view it Tuesday. In the jumpy body camera video of the officer who shot Toledo, the officer chases the teen on foot down an alley for several seconds and yells “Police! Stop! Stop right (expletive) now!” As the teen slows down, the officer yells “Hands! Hands! Show me your (expletive) hands!” Toledo then turns toward the camera, the officer yells “Drop it!” and midway between repeating that command, he opens fire and the teen drops to the ground. While approaching the wounded Toledo, the officer radios in for an ambulance. He can be heard imploring the boy to “stay awake,” and as other officers arrive, the officer who apparently fired the shot says he can’t feel a heartbeat and begins administering CPR. Other officers can be heard saying, “Stay with me, buddy,” “Stay awake, bud. Come on bud, stay awake,” and “Come on, big guy.” It wasn't immediately clear from the body camera footage whether Toledo was holding anything when he turned around. He appeared to be holding his hands up, or trying to, right when the gun was fired. Police have said Toledo had a handgun on him and that investigators recovered it from the scene. Shortly before the board posted the video and other investigation materials on its website, Mayor Lori Lightfoot urged the public to remain peaceful and reserve judgment until the board can complete its investigation. Choking up at times during a news conference, Lightfoot decried the city's long history of police violence and misconduct, especially in Black and brown communities, and said too many young people are left vulnerable to “systemic failures that we simply must fix.” Lightfoot described watching the footage as “excruciating." The teen, who was Latino, and a 21-year-old man fled on foot when confronted by police, and an officer shot the teen once in the chest following a foot chase during what the department described as an armed confrontation. Police said a handgun the boy had been carrying was recovered at the scene. The 21-year-old man was arrested on a misdemeanor charge of resisting arrest. The review board initially said it couldn’t release the video because it involved the shooting of a minor, but it changed course after the mayor and police superintendent called for the video’s release. The Chicago Police Department has a long history of brutality and racism that has fomented mistrust among the city’s many Black and Hispanic residents. Adding to that mistrust is the city’s history of suppressing damning police videos.