Factual Evidence?

Can anyone post actual facts that support Jack Tarrance being the Zodiac? Please avoid the conspiracy foo, which is baseless. Nanette Barto's findings are obviously biased, so her findings really don't mean much, especially since the subjective nature of handwriting comparison has been displayed over and over again, anyway. All I'm asking for is a post by someone that can present any facts in a straightforward manner minus all of the crap (that really doesn't bolster this subject as much as eliminate him). Not holding my breath.