Much of the debate in this case has centered on the evidence, and I must say, there's a whole lot of it, far more than in a great many other cases. The problem is that much of it really isn't relevant (such as, e.g., the stun gun, butler door, "pubic hair," baseball bat, Hi-Tec print, DNA, etc., etc.) and just about all of it is, to coin a term:
inconclusive. One might comment that, in fact, there seems to be too
much "evidence" in this case, to the point that ones head starts to spin just trying to get a handle on it. A trip to one of the forums will give you an idea of what I mean. We see endless discussions and debates that just go around continually in circles over the meaning of this that or the other piece of "evidence" and there never seems to be any definitive agreement on any of it.
On the other hand, an extremely valuable investigative tool has almost been ignored -- the favorite tool of the legendary Sherlock Holmes -- logical deduction, also known as
inference. Let me give you a few examples of how logical inference can be put to work in understanding certain meaningful aspects of this case: