You wrote:
collection of the hair, blood, or fingerprint evidence
- Hair - mitochondrial DNA match. Could have been Brenda or the boys as well as Danielle's.
- Blood - not proven to be blood. I believe that it was a mitochondrial DNA match as well (i.e. could have been Brenda's as well).
- Fingerprints - Danielle was in Westerfield's house unsupervised while Brenda was looking at the kitchen remodel. Fingerprints in the moter home could have been from quite awhile ago (Westerfield didn't always lock the thing as per testimony).
The evidence isn't there to convict, IMHO. And we know that Brenda and Westerfield bumped and grinded at the bar (as per testimony) - do we know that they didn't do other things either in the motor home or his house?
This case isn't over yet, IMHO.
If Danielle was in his house while she was alive, why didn't Westfield present testimony to that fact? He didn't because he couldn't.