The night 17-year-old Laquan McDonald was shot, Chicago police walked into the nearby Burger King restaurant to see what the security cameras found. After they left, the store manager said the security video footage was gone.

Now, NBC5 Chicago has obtained screenshots from surveillance video in the store's office, and the news channel was told that four to five officers were inside the restaurant for several hours in the moments leading up to the fatal shooting. 

RELATED: The Totally Absurd Way Officials Botched Laquan McDonald's Killing

On Tuesday, a week after the release of a disturbing dash cam video showing the shooting of McDonald, Chicago Police Supt. Garry McCarthy was fired, Chicago Mayor Rahm Emanuel announced.

Prior to the release of the video, former officer Jason Van Dyke was terminated and charged with first degree murder.

The dash cam footage showed all 16 shots being fired into McDonald's body. The video's release—over a year after the event took place—sparked protests all over the country.

http://www.nbcchicago.com/on-air/as-seen-on/WEB-5P-PKG-MCDONALD-BURGER-KING_Chicago-359086031.html 

Tension over the video's release has eased—but some questions still hang in the air about the former officer charged with McDonald's murder.

Between the time Jason Van Dyke was filmed shooting McDonald and the release of the footage in question, McDonald remained on the Chicago Police Department's payroll.

"400 days? Really, Alvarez? Really, McCarthy? Really, Rahm?," Eric Zorn asked in the Chicago Tribune, posing the question to state attorney Anita Alvarez, Police Superintendent Gary McCarthy, and Mayor Rahm Emanuel.

RELATED: Chicago Officer Who Shot Laquan McDonald Was On Payroll For 400 Days After Incident

You can watch the full NBC5 Chicago footage below: