AQ terroristas, IMHO, would not be into sniping the way this guy is. They are more apt to take-out MANY people at one time, NOT one-by-one. They are more likely to try and kill LARGE numbers at once.
THIS IS NOT AL QUEDA.
NOR IS THIS TERRORISM. If it were, then EVERY crime committed by an American against an American would be considered "Terrorism" and would fall under the jurisdiction of Homeland Defense and all of the unconstitutional laws that they use for surveillance and prosecution.
IT IS CRIME. IT IS MURDER. IT IS A DOMESTIC PROBLEM INVOLVING A SOCIOPATH. NOTHING ELSE.