Nancy Grace

I want to thank you for being with us.

Straight out to Crime Stories investigative reporter Dave Mack.

Dave, what's the latest?

Dave Mack renewed interest in Mrs. Guthrie's bedroom and garage.

Why?

So were any objects placed in a different location than they normally would have been?

You know, to Chris McDonough joining us tonight, director at the Cold Case Foundation, former homicide detective.

He had an extensive, extensive experience in searching for suspects in Mexico.

Over 300 homicides under his belt.

And he is the star of The Interview Room on YouTube.

Chris McDonough, you have a special interest in Ms.

Guthrie's bedroom.

Explain.

Why do you think the theory about a tarp, and I agree with you for other reasons, by the way, why do you think that's misplaced?

Let's take another look at the video of her in the bedroom.

I want to take a careful look beside her bed.

You're right.

That's where she would charge her phone most likely and her hearing device right by the bed.

But it looks like she's got it put away for the cameras.

Now, why is her routine so significant to you, Chris McDonough?