Chicago police are warning law enforcement officers across the nation that today's release of body-cam video showing a black man shot by police officers might result in violence.

According to a memo seen by FoxNews.com, authorities said making the video of Paul O'Neal's death public, coupled with the Aug. 9 anniversary of Michael Brown's death in Ferguson, Mo., "may cause an uptick in violence against police nationwide."

O'Neal was shot in the back on July 28 during a stolen vehicle investigation. Three police officers were put on leave after an initial investigation determined their behavior violated department policy:

Chicago's Independent Police Review Authority says that video from body cameras worn by two of the three officers who shot at O'Neal will be released at 11 a.m. CT Friday. The third officer's body camera was not recording at the time.

The video release conforms to a new city policy requiring the release of relevant video within 60 days of a police shooting. A former Chicago police officer is already awaiting trial for first-degree murder in the 2014 shooting of Laquan McDonald.

Police are already on high alert following the shooting of five police officers in Dallas during a Black Lives Matter protest. Three more officers were shot in Baton Rouge, Louisiana ten days later.