JONATHAN VIGLIOTTI:
00:00:28
That statement from Pima County Sheriff Chris Nanos, who said potentially critical evidence recovered from Nancy Guthrie's Tucson home, hair, came back inconclusive. It came back with no results. No results. Was there blood that is still being analyzed right now that could belong to the suspect or suspects? I know that there was blood at the scene.
JONATHAN VIGLIOTTI:
00:00:48
That blood and other DNA Nanos says has yielded no results. No new video has been recovered, and it appears the suspect or suspects evaded traffic cameras. Do you think that the suspect or suspects could be local? Sure. Absolutely. You do. Absolutely. Do I have evidence of it? No, but let's look at crime across the country. 90%, 95% of your criminals are where? Right here locally. Our family is in agony. We are in a nightmare that will not end.
JONATHAN VIGLIOTTI:
00:01:18
On Monday, Savannah Guthrie addressed her mother's kidnapper, who it's believed sent two notes to the family before going silent. So I'm asking you, begging you, to do the right thing now. Make the right choice. Help us find her. You say you are optimistic. You are positive that there will be a resolution here. Is that based on any evidence that you have before you, or is that driven by your gut? It's based on all the evidence before me. The bottom line here is this. We know more than you will ever because that's how investigations work. And the sheriff would not elaborate on the evidence, but he did say this is far from a cold case. He's still calling on the public for help. Anyone with information is asked to contact the FBI. That number, 1-800-CALL-FBI. Jonathan Vigliotti, CBS News, Tucson, Arizona.
