This from Eric Haak:
Here are some images from a Still & Box Alarm in Chicago that came in shortly after 4:00 pm on Thursday (7/2). The structure was on the 500 block of South Millard and was a vacant “Red X” building. Battalion 13 reported he had a large volume of smoke coming from the second floor and was concerned about communication to the “D” side exposure which was a 3-story vacant. My images are from about 45 minutes in. Engine 38 was also pumping at Central Park and Congress and Tower Ladder 14 was working in sector “C”.