It shows McDonald running, then walking down the center lane of a two way street. He veers away from police cars in the left lane, carrying something in his right hand, and then is spun around as he is shot from the left. Then he is shot as he is lying on the ground.

A medical examiner’s report said McDonald has PCP in his system when he was killed. Van Dyke is being held without bail until at least Monday, when the judge will view the video.

Reaction to the video was swift. “The video shows that everything that police said after the shooting was a lie,” a Chicago Sun-Times columnist writes. Chicago citizens took to the streets after the video’s release to protest:

Ahead of the video’s release, the city’s mayor pleaded for calm. “I believe this is a moment that can build bridges of understanding rather than become a barrier of misunderstanding. I understand that the people will be upset and will want to protest when they see this video,” said Chicago mayor Rahm Emanuel. “We as a city must rise to this moment.”

The video’s release comes amid a national dialogue around racism and police brutality, sparked in part by the August 2014 shooting death of Michael Brown, an unarmed black teenager, by a white police officer in Ferguson, Missouri. More recently, on Nov. 15, a 24-year-old black man named Jamar Clark was shot by a Minneapolis police officer; he died Nov. 16 after his family took him off life support. Yesterday, a group of white supremacists opened fire on Black Lives Matter protestors in Minneapolis, injuring five people, after a dozen demonstrators attempted to escort them away.

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