The FBI has announced this individual is being sought for the murder of the police officer. You can see him holding the fire extinguisher.
Some people have suggested that CFD means Chicago Fire Department. I don’t know about that.
Looks like they found him, and CFD indeed stands for Chicago Fire Department
https://twitter.com/PamWolf12896175/status/1348866191528493056I cannot find any news that he has been arrested, yet.. even though there is more information coming out linking the guy to the incident and giving some of his background