This from Josh Boyajian:

Chicago had a working still at 2833 N. Spaulding. We were on our way home from Skokie and took it in. Engine 106 had heavy smoke O/A. Fire was reported to be on the 1st floor. Truck 13 made the roof and did a lot of work up there. Engine 106 had two lines lead out. Here are my pictures along with the new Explorer for Paramedic Field Chief 4-5-2.
Chicago firefighters working on a roof

Josh Boyajian photo

Chicago firefighters working on a roof Crimson Spartan ERV ladder

Josh Boyajian photo

Chicago firefighters working

Josh Boyajian photo

Chicago firefighters working

Josh Boyajian photo

Chicago firefighters working on a roof

Josh Boyajian photo

Chicago Paramedic Field Chief

Josh Boyajian photo

Chicago firefighters at fire scene

Josh Boyajian photo