"Veddy Interesting! How about a Jamaican, Bahamian, etc.?"
Was it "Dear Policeman" or "Dear Policemen"? I've seen it cited both ways. And the latter is even less syntactically "American" -- and more syntactically "British".
The tarot card doesn't lead me anywhere. It's a contrived device; therefore, not a self-revelation nor of any value as a "pointer".
But the syntax of the message may contain a clue. The salutation is just not what an ordinary American would be likely to write -- either with aforethought or without thinking.
I wonder if the writing was script or printing. And, if printing, caps & lower case or all caps...
Shermy, while you reasonably volunteer Jamaican or Bahamian, there is also a description of "Hispanic (or Middle East) appearance". Where would British language and education prevail in a Hispanic or Arab country? Belize? Jordan? Egypt?
BTW WTOP radio announced two shootings in Virginia, Manassas and Fairfax. Apparently someone at a gas station at a Sonoco Station in Prince William. Also a man in Fairfax on Lee Highway. No connections known.
As for the house shooter, they're waiting for a search warrant.