Hi,
I have just updated an essay on the PRA website in case the investigation heads off in this direction:
Possible connections between militant Islamic fundamentalists, the U.S. extreme right, and Black Nationalism: Right-Wing Attacks on the U.S. and Third Position Fascism
http://www.publiceye.org/fascist/third_position.htm
Note that the men arrested have not been named as suspects, and that this angle may be a false lead.
-Chip Berlet
See:
http://www.chicagotribune.com/news/nationworld/sns-ap-sniper-muhammad1024oct 24.story
Lives of Men in Sniper Case Studied
By Associated Press