Now, Danielle's PJ's had a bloodtype stain on the anklet. My guess is that Danielle had a scratch from the dog or something that DID BLEED (obviously, on the PJ's) and since Damon and Brenda both were trying to say those Pj's, laying on Danielle's floor, inside out, were NOT HERS, that would mess up their story. SO,somehow they had it already established that Defense couldn't bring that up as there was no proof, because the LE's test didn't come up with Danielle's DNA from it. Because someone (LE) didn't want it to.
IIRC Brenda said that the pjs that were on the floor were not those Danielle was wearing that night. Danielle supposedly was wearing the twin of the pair her grandmother held up for the media. That pair was, according to Brenda, worn by Danielle's friend at sleepovers. I wonder if the friend's mother can corraborate that.