When this thing first started, I was inclined to disbelieve there were more than one shooter, but it looks like there really were. And they had a well thought out plan, to do what they came to do and get away.

Frankly, I'm puzzled, along with everyone else. They must have had some sort of goal, but they don't seem to have left any clues as to what it was.

Onward and upward,
airforce