critics say more effort goes into making sure the more affluent areas remain safe and undistu undisturbed>> i wish the mayor would be mayor for all of the city and not just certain parts of the city. >> reporter: cook country commissioner says the disparities are undeniable. >> there ought to be the same type of protection for people who live in austin, engelwood, lawndale, these communities have been devastated by gun violence. >> reporter: some say the two chicagos cannot be equalized without a concerted effort at the top level. >> those communities need to have an entire effort to bring the change, and as long as you have areas where there is very little hope, you'll have gangs, guns, crime, and murders. >> are you stupid! >> reporter: it came to a head in recent weeks. protests erupted after the release of dash cam video, showing a white police officer firing 16 shots killing a black teenager. it's a tail of two cities, say some, one of them thriving and safe, the other poor and perilous. ashar qureshi, al jazeera, chicago. >>> our week-long special, five days in chicago continues ton