Brian Fields, the 31-year-old victim, was allegedly attacked on camera while he was live streaming the Facebook video in his local neighborhood of Englewood.
The video has become an integral part of the investigation into the alleged shooting, with Chicago police working to verify its authenticity.
The graphic clip, which has subsequently gone viral being shared online thousands of times, shows Fields filming himself in the afternoon when someone approaches him and fires several shots.
The camera then drops to the ground, and all that can be heard is the surrounding environment.
According to the police, the gunman jumped into a vehicle and sped away following the attack.
Eyewitnesses claim that they heard nine or 10 shots before Fields hit the ground. The gunman can also be seen in the frame of the live stream for a brief moment.
“It looks like someone snuck up from behind him,” Fields’ friend Manuel Stewart told ABC.
Fields is currently in critical condition at Mount Sinai hospital, having suffered gunshot wounds to the face and groin.
Chicago police have stated that they are closely examining the individuals in the clip in order to find witnesses and suspects.
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