Not a foreign national, is a start. Still a possibility it could be someone working fora foreign
government who has been living in the states for a long time. Even an American citizen.
I just hope all the truth about the shooter is clear.
Seeing now a guy saying they were telling the SS about the guy on the roof. For 3-4 minutes. Was telling the police and the SS about the guy they saw with a gun crawling up the roof. He said they likely couldn't have seen the shooter as he was on the other side of the sloped roof.
Would anyone be surprised if it turns out to be a setup. All possibilities should be seen as possible until the truth is known.
It was Plato who said, “He, O men, is the wisest, who like Socrates, knows that his wisdom is in truth worth nothing”