[Texas Mom]

If it is him, he knows that he's worn out his welcome in the D.C. area.

I still think there are more than one "hims"..

[concerned about politics]

One shooter seems illogical. There would be something in common with all the shots, I'd assume.
From a terrorist cell standpoint, it all makes sence. It would be logical. The chaotic pattern is in itself the tool of terrorists.