A police report about the shooting of 17-year-old Laquan McDonald released late Friday by the Chicago Police Department differs dramatically from footage of the killing made public last month.

While the highly controversial tape shows an unarmed McDonald stumbling away from police officers, the report published Friday reportedly suggests he was moving toward the officers while wielding a knife.

Several officers backed the story told by Jason Van Dyke, who has been charged with first degree murder for shooting McDonald 16 times, by giving statements that indicated Van Dyke fired on McDonald for fear of his life.

Chicago officials fought against the release of the dashboard-camera video for months before a judge forced the city to make the footage public.

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