Random thought....Jason could have brought a tarp upstairs to the MBR to prevent tracking of stuff, be it debris, blood, fibers, etc.
He also could have worn a jumpsuit, a hazmat type outfit. I wonder if they checked Army supply type places to see if he purchased any of that type of clothing.
And if investigators did not get to the dog and forensically search him, for fibers and things he may have ingested, that was a possible mistake, too.
I have asked a few times, but no response and I do not see any video in the WRAL archives, but did Ryan Schaad testify in the first trial?
Someone suggested a Tyvek suit, maybe a cheap painter's suit.