This is why I still haven't closed the door on those remains:
“Yes, we’ve pretty well concluded it’s not her,” Davidson said. “Heather Elvis went missing approximately three months before the remains were found here. The experts who’ve examined the remains are confident that they’re older than three months.”
"Pretty well concluded" is not "ruled out" (such as "the dental records or DNA do not match"). "Confident that they are older than three months" does not mean that they absolutely WERE older than three months (remains can prematurely decompose, such as being exposed to heat or humidity, ). From the site below:
"The formula is y=1285/x (where y is the number of days it takes to become skeletonized or mummified and x is the average temperature in Centigrade during the decomposition process)."
This would mean that if the temp was 15 degrees C (59 degrees F) y=1285/15 or 86 days to become skeletonized (rough estimate based on many factors). So remains can be skeletonized in less than 3 months.
http://www.archeo.uw.edu.pl/zalaczniki/upload617.pdf
Mistakes can and have been made before. Again, if they don't have the results for the remains, they can't share that information with the defense.