Okay, but where does it say that he was plotting to blow anything up on Sep 13 or that he was joking about doing so. The only thing I found in what you posted was that he wanted to build support for his religion through an online poll.
I'm looking for quotes from these men that they were joking in such a way that this Stone woman would overhear them. So far, I've found nothing but her claims or statements from the authorities citing her claims.
dan