This was a great question Roy23. So far, I haven't seen any responses indicating (based on what we currently know), that they would return a guilty verdict.
In a way this is consistent with
the poll I'm keeping which asks (based on what we currently know), what's the boards opinion on the likelihood of reasons for NC's demise (current results below):
A: BC did it (or arranged it):
78.2% chance
B: Person known to NC other than BC did it:
11.8% chance
C: Random crime:
9.75% chance
D: She's Alive & In A Witness Protection Program:
0.25% chance
While "BC did it" is the frontrunner theory (based on current knowns - most of which are CE of course), that other 21.8% is what we call "reasonable doubt". Enough of it still exists (based on what we know), that would suggest there's no conviction possible based on current knowns, and the board would seem to agree.
[ Feel free to weigh in on the poll (or PM me) - will be interesting to see how (and in which direction) the numbers change as more things become known. ]
Bottom line, with this case though, even one single datapoint could change the whole landscape substantially (e.g. an eyewitness seeing Nancy running Saturday AM; confirmation that the oldest child does agree she saw Mommy go running Saturday AM, etc).
Personal prediction: We're in a waiting pattern for DNA. If another 30 days go by, and there's no break in this case, then settle in folks - it could be a long ride.