It was indeed denied. My dealings with SnoCo LE, fire etc have not revealed anything like that though it is less likely to come out in a professional setting.
I still think making comments about the area impugns the victims, because.... they lived in the area too. How do we know the Reeds are more or less involved in the than the victims? And of course, does it matter? I believe the only direct link on the religious front was the purchase of neighboring property, not by the Reeds.
Please jump in if I missed something.
Now, would I believe the brothers could have had assistance and that their family and friends may not have cooperated with police? Sure.
I found an old story on Freedom County:
http://www.heraldnet.com/article/20001029/NEWS01/10290717
Interesting stuff.
And not to imply it was purely a local phenomenon, even King County had its own secessionist movement.
http://www.historylink.org/index.cfm?DisplayPage=output.cfm&file_id=7894
Now there are places near where I live where you can "hear the banjos playing" but as you say it doesn't mean most people in an area are of that ilk.