If you actually read the article you linked, you'd find that there is good reason to question the statement CPD provided about an incident involving the Chicago Department of Aviation's security team. Again this incident did not involve CPD, and while CPD did put out a press release, it was not a proper press release and did not deal with their officers. So yes, there is serious evidence to believe that the official reports of this incident are not entirely reliable.
Why bodycams and video footage in general changed the game. Can't paint the victims as something they were not.