I've wondered the same... and yet, IIRC, we've seen estimates here in the past which imply it can take weeks to make a DNA determination... gads I hope not...
Jumping off Cinder's post:
On the subj of (#1) if they have perp DNA at 7bridges and (#2) if the said perp turns out to be the pigman... then why the h*ll didn't the pigman pop-up on DNA database search?!?
On that subj, here's my question: Is it possible that the perp DNA at 7bridges was so degraded by time and/or in such a small amt that the best the techs could do is employ that "multiply results thingy" which they use?
Is it possible that the "multiply results thingy" wasn't strong enough to trigger a match in DNA database???
O/T and ETA: I'm too tired to finish my thoughts... come on peeps, please somebody understand where I was headed, which has to to with "now that they have a strong DNA profile" for comparison...
Perhaps you are thinking of low number count DNA, where the amount is so small that it cannot be conclusively used to identify someone, but it can be used to compare to existing DNA such that there are enough common factors that it conclusively implies a connection. That technology was used in the Knox case, but many people have tried to discredit the process (that was originally developed in the UK and which is now widely used) because it implied Knox's guilt.