Which trial have they been listening to? Faulkner clearly stated facts and conclusions from those facts that would force any reasonable person to decide it was impossible for DW to have disposed of the body. If he didn't get rid of the body, who did? Damon is looking more and more suspicious all the time.
The reasons that many of the callers & even RR himself have expressed seem to be that DNA evidence trumps ALL. Nothing else matters. "Oh, the bug guy was interesting, but they can't explain away the blood, hair & fiber."