We will never be told, but I have strong suspicions this had a greater pre-planned design than the official narrative.
That both kamala and booker immediately twatted the incident was "a modern day lynching," with no evidence other than jussie's version, reeks to high hell. The had that "anti-lynching" federal hate law waiting in the wings, and this "incident" played right into getting it support.
Tina Tchen and the mooch had "concerns" about the investigation, because they learned the Chicago PD weren't being fooled by the story. They wanted the fibbers to jump in where they could be told "how" to do the investigation and "what" to find and not find in it.