This tree hasn't died yet. It will take awhile before it reaches a state where it might be able to open a Twitter account. When a tree looks like this better to just put it out of its misery.
Commercial districts can suffer from neglect or lack of owner interest. The devil is in the details. It is possible that the tree would survive if all the dead branches were removed (probably not).
In its present state the tree has no future. From this view you can't really appreciate how strange this sight is. This tree is right in front of the Rogers Park Florist.