I was in the neighborhood when Chciago’s 7th Battalion pulled up on a working fire in a three-story, brick apartment building at 3111 W. Diversey Avenue. They had rear porches going with extension to a two-story house on Troy behind the fire building. He asked for a Box Alarm and companies made quick work of knocking down the fire. I arrived before the Box Alarm companies to find crews washing down hotspots.