I personally am hopeful that Nancy is alive.
re. the presser, Sheriff seemed excited and nervous, and at pains to convey how
little LE know, and how
slow all the tests are to come back. He almost slagged off tech companies, made a joke about how he too was wondering why it was taking so long, and then backtracked completely and went into a monologue about how great they were. It felt like he realised he was about to throw them under the bus when in fact they have already co-operated.
Usually, if a police force under this much pressure would want to convey maximum competence. He seemed to want to do the opposite. I think it was an act, and performing the act was making him nervous. Maybe it was a last minute decision, hence the delay.
I also think it was odd the way he said 'we'll see you on Thursday', like... aren't you hoping to solve it by Thursday? It's only Tuesday! And then he went 'UNLESS THERE'S A BREAK!' like he already knows there will be a break but he can't tell us about it yet.
MOO. And of course this might all just be wishful thinking on my part

.