Actually, it's the "Oswald-Did-It"-ites who are like the Creationists. They believe it because their book says so, and because an authority figure said so.
The WC report is based on hundreds, if not thousands, of interviews with eyewitnesses and experts. Pages and pages and pages of reports, photographs, schematics, and graphs, all of which were published alongside the report. Even if you disagree with it's conclusions, implying that the report is some work of faith completely misses reality.
And, by the way, you really stooped to the old "I know you are, but what am I?" Really? Sir, I'll have you know that I am of the finest quality Brazilian rubber while you are composed of cheap, gluten-based sticky-products. Your crap ricochets from me and adheres to your person.
So there. :-P