I have it from a reliable source that at least one tape exists that proves Wilhelm lied under oath at the hearing.
Details are sketchy.
Illinois law allows for the taping of a conversation as long as ONE of the taped parties knows about it. But federal law is unclear, so tapes may or may not show up in court next week. At this point, nobody is admitting the existance of the tapes, or who made them. Speculation is that this may be the trump card that Dyson has been threatening to use against Wilhelm. It remains to be seen if this is true, or just a rumor.