Nsp, Wright spoke of 47th and Calumet; I recall sitting in my cousin's car on Calumet, waiting for him to come back, when some guy came running down the sidewalk past my window, and hearing a policeman scream halt before he fired his revolver; this guy turned and fired back at the cop then kept on running; I recall he was well dressed. It's funny how details stick in your mind at a time like that.
Fortunately for me they were fairly good shots, they missed each other but the bullets came within feet of my window or closer and they didn't hit me or the car. That let me know I was in the big city. At that time, the population of Chicago was 3620962 and it was number 2 in the USA.