Matthew Mangino

Was it a neighbor who physically saw her?

Where did that description of what she was wearing come from?

That's a key question right now in this investigation.

Concern turns to fear when Linda still hasn't returned home Sunday.

Though Antoine last saw Linda Friday night, neighbors say they spotted her Saturday morning near their home.

Linda's purse with her wallet and phone are missing from the home, and her phone still rings when called.

Family and friends retrace the teacher's last known steps, hoping to discover some clue to her whereabouts, but don't find any leads.

Authorities still haven't located her car either.

When Linda misses the first day of school after winter break, loved ones know something's wrong.

Linda would never let her students down.

Absolutely, Nancy.

And we've seen this in a number of cases that we've covered.

Suzanne Clark, Nikki Chang, Salee McCain, you know, the non-response is a window to start identifying what were her last messages.

And I did notice in one of the press conferences, I believe it was the husband said that her phone was on for a period of time.

So that phone being on and non-responsive

we can zero in on that window of time where something may have happened to her.

Yeah, there's certainly a hierarchy here where not showing up to work would be at the top of the list.

Missing the appointment that was a standing appointment is also a big deal, right?

You know, there could be something going on that you don't respond to text for a day or two.

You might have your phone off, et cetera.