Subject: The cult did it.
From: jaj@cambridge.apple.com (Jeremy Jones)
Date: 1990-05-17, 10:18
Newsgroups: alt.tv.twin-peaks

It looks to me like there is a cult.  Remember the circle of candles?
Bobby, his friend Mike, and others are members of the cult.  This cult
is the "darkness" referred to by the Bookhouse boys who oppose the cult.

Bobby is aware that James is a Bookhouse boy who opposes the cult, hence
his hate for James and the barking in Jail.

The cult is responsible for Laura's murder so that although we won't find
out who the murderer is by the end of the series but we will feel satisfied
because we will know that members of the cult did it.

Is Ben the ringleader of the cult?

Oddly enough, I don't think Leo is in the cult, otherwise Bobby wouldn't hate
him so much.

By the way, at least three times in the series, they have shown a full moon.
The ritual murder might have something to do with that.