Some video of the shooting incident involving the death of black teenager 17-year-old Laquan McDonald by Chicago police officer Jason Van Dyke appears to have gone missing. The manager of a Burger King near the scene said during an appearance in front of a grand jury that his surveillance video was erased by the police.

The Burger King, situated at 41st and Pulaski, is about 50 yards away from the spot where Laquan was fatally wounded by Van Dyke. While the public knows what unfolded that night, not many are aware of what unravelled inside the Burger Kind outlet, according to AOL.

The manager claims that the video evidence was tampered with by the police. The video spans 86 minutes and includes the time at which McDonald was being chased and shot at by the police. As of now, only the police dash cam video footage shows what happened that night. However, other events that may have happened could have been uncovered from the surveillance footage, as well. Both the video footage and the recorder are in the custody of the FBI, but  no forensic evidence has been made available to show that the surveillance footage has been tampered with, and that there just could have been some technical difficulties during the time of the shooting, Examiner reported.

"I was just trying to help the police with their investigation. I didn't know they were going to delete it," said Jay Darshane, the Burger King manager.

McDonald's lawyers have said that the video footage will most likely not show the shooting but may show McDonald's movements just prior to his death. The authorities in Chicago, including the police superintendent, have labelled untrue allegations that the police have deleted key footage, according to USA Today.