This from Steve Redick:

I left the “3 bagger” to take in this job.  Engine 49 from a change asked for a box right away after they arrived. The building was undergoing some renovation as indicated by the scaffolding so a defensive stance was taken initially. Squad 1 wiggled the new rig into a tight spot. Not much to really see but a changing smoke condition based on the prevailing winds. I can’t think of the last time I left one job to take in another (except for Detroit).

All the photos and video from the two fires can be seen here:
Steve

Chicago Firefighters and fire trucks at fire sene

Steve Redick photo

Chicago fire trucks at fire scene

Steve Redick photo

smokey conditions during building fire

Steve Redick photo

Firefighters battle building fire

Steve Redick photo

Chicago FD Engine 49

Steve Redick photo

Chicago FD Engine 5

Chicago FD Engine 59

Steve Redick photo

Chicago fire trucks at fire scene

Steve Redick photo

Chicago FD Squad 1A

Steve Redick photo