Search continues for Savannah Guthrie‘s mother

SAVANNAH GUTHRIE'S NEW MESSAGE OF HOPE BUT ALSO REQUEST FOR. MESSAGE OF HOPE BUT ALSO REQUEST FOR PRPRAYERS FOR NANCY'S. ALSO REQUEST FOR PRAYERS FOR NANCY'S SAFE RETURN, SOMETHING. PRAYERS FOR NANCY'S SAFE RETURN, SOMETHING WE AT NBC ARE. SAFE RETURN, SOMETHING WE AT NBC ARE DESPERATELY HOPING FOR. WE AT NBC ARE DESPERATELY HOPING FOR TONIGHT. TONIGHT. LIZ KREUTZ. >> Reporter: WE'RE. LIZ KREUTZ. >> Reporter: WE'RERE LEARNING MORE DETAILS. LEARNING MORE DETAILS ABOUT THE DISAPPEARANCE OF. ABOUT THE DISAPPEARANCE OF 84-YEAR-OLD NANCY. DISAPPEARANCE OF 84-YEAR-OLD NANCY GUTHRIE. 84-YEAR-OLD NANCY GUTHRIE. >> WE HAVE A LOT OF. S. WORK IN FRONT OF US. >> Reporter: THE FBI WORKING ALONGSIDE THE. >> Reporter: THE FBI WORKING ALONGSIDE THE PIMA COUNTY SHERIFF'S. WORKING ALONGSIDE THE PIMA COUNTY SHERIFF'S OFFICE, WHICH TELLS US. PIMA COUNTY SHERIFF'S OFFICE, , WHICH TELLS US THEY STILL DON'T KNOW.

OFFICE, WHICH TELLS US THEY STILL DON'T KNOW WHERE SAVANNAH'S. WHERE SAVANNAH'S MOTHER IS. YOU RECEIVED A WILL. MOTHER IS. YOU RECEIVED A WILILL THE OF TIPS AND LEADS. THE OF TIPS AND LEADS BUT NOT ONE E SIGNIFICANT NEED. SIGNIFICANT NEED. >> WE DON'T HAVE ANYBYBODY SAYING THIS IS. >> WE DON'T HAVE ANYBODY SAYIYING THIS IS WHO YOU'RE LOOKING. WHO YOU'RE LOOKING FOR, THIS IS THEHE PERSON. PERSON. >> Reporter: NO SUSPECTS? >> Reporter: NO SUSPSPECTS? >> NOT YET. >> NOT YET. >> Reporter: THEY'RE WORKING G TO PIN DOWN A. >> Reporter: THEY'RE WORKING TO PIN DOWN A TIME LINE WHEN NANCY. TIME LINE WHEN NANCY GUTHRIE WAS TAKEN FROM HER TUCSON HOME, WHICH. GUTHRIE WAS TAKEN FROM HER TUCSON HOME, WHICH THEY SAY WAS AGAINST. THEY SAY WAS AGAINST HER WILL IN THE MIDDLE OF THE NIGHT. HER WILL IN THE MIDDLE OFOF THE NIGHT. THEY'VE TAKEN DNA. OF THE NIGHT. THEY'VE TAKEN DNA SAMPLES AT HOME. THEY'VE TAKEN DNA SAMPLES S AT HOME. PRESIDENT TRUMP. A.

PRESIDENT TRUMP RERESPONDING TO A QUESTION ABOUT THE. QUESTION ABOUT THE DISAPPEARANCE. >> WOUOULD YOU COMMIT TO. DISAPPEARANCE. >> WOULD Y YOU COMMIT TO MORE FEDERAL AGENTS. >> WOULD YOU COMMIT TO MORE FEDERAL AGENTS HELPING? HELPING? >> SURE I WOULD. I ALWAYS GOT ALONG. >> SURE I WOULD. I ALWAYS GOTOT ALONG WITH SAVANNAH. I ALWAYS GOT ALONG WITH SAVANNAH. UNUSUAL SITUATION. WITH SAVANNAH. UNUSUAL SITUATATION. >> Reporter: OFFICIALS. >> Reporter: OFFICIALS PLEADING WITITH NEIGHBORS TO CHECK. PLPLEADING WITH NEIGHBORS TO CHECK SECURITY CAMERAS. NEIGHBORS TO CHECK SECURITY CAMERAS. ANY FOOTAGE FROM. SECURITY CAMERAS. ANY FOOTAGAGE FROM NEIGHBORS THAT'S BEEN. NEIGHBORS THAT'S BEEN HELPFUFUL? >> I DON'T KNOW ABOUT. HELPFUL? >> I DON'T KNOW ABOUT HELPFUL, AHA, SOMEBODY. >> I DON'T KNOW ABOUT HELPFUL,L, AHA, SOMEBODY IN THE NEIGHBORHOOD. OR.

IN THE NEIGHBORHOOD SLINKING AROUND OR THIS CAR SHOULDN'T. SLINKING AROUND OR THIS CARAR SHOULDN'T BE -- WE DON'T HAVE. BE -- WE DON'T HAVE THAT YET. >> Reporter: THIS IS. >> Reporter: THIS IS HOW IT LOOKS. MANY H HOMES ON BIG. HOW IT LOOKS. MANY HOMES ON BIG LOTS, SET BACK FROM. MANY HOMES ON BIG LOTS, SET BABACK FROM THE STREETS AND. LOTS, SET T BACK FROM THE STREETS AND VEGETATION BLOCKING. THE STREETS AND VEGETATION BLOCKING THE ROAD. VEGETATION BLOCKING THE ROAD. THERE'S NO. NG. THERE'S NO STREETLIGHTS, MAKING IT HARDER. IT HARDER. THEY SEARCH FOR POTENTIAL CLUES IN THE. THEY SEARCH FOR POTENTIAL CLUES IN THE DESERT BRUSH. POTENTIAL CLUES IN THE DESERT BRUSH. >> ANY FOOTPRINTS TO. DESERT BRUSH. >> ANY FOOTPRINTS S TO GIVE US AN INDICATION. GIVE US AN INDICATION WHERE SOMEONE MIGHGHT HAVE BEEN. WHERE SOMEONE MIGHT HAVE BEEN. >> Reporter: THE. HAVE BEEN. >> Reporter: THEHE COMMUNITY BANDING.

>>>> Reporter: THE COMMUNITY BANDING TOGETHER, AND SAVANNAH. COMMUNITY BANDING TOGETHER, AND SAVANNAH GUTHRIE ASKING FOR. TOGETHER, AND SAVANNAH GUTHRIE ASKING FOR PRAYERS. GUTHRIE ASKING FOR PRAYERS. DO YOU BELIEVE NANCY. PRAYERS. DO Y YOU BELIEVE NANCY GUTHRIE IS ALIVE? DO YOU BELIEVE NANCY GUTHRIE IS ALIVE? >> I'M NOT - -- YOU. GUTHRIE IS ALIVE? >> I'M NOT -- YOU KNOW, I WILL NOT GIVIVE. >> I'M NOT -- YOU KNOW, , I WILL NOT GIVE UP ON THAT. KNOW, I I WILL NOT GIVE UP ON THAT. WE HAVE NOTHING ELSE. UP ON THAT. WE HAVE NOTHING ELSE TO GO ON BUT THE. TO GO ON BUT THE BELIEF SHE IS HERE, PRESENT, ALIVE AND WE. BELIEF SHE IS HERE, PRESENT, ALILIVE AND WE WANT TO SAVE HER. WANT TO SAVE HER. THAT'S ALL WE WANT TO DO, GET T HER BACK HOME. THAT'S ALL WE WANT TO DO, GET HER BACK HOME SAFE AND SOUND. DO, GET HER BACK HOME SASAFE AND SOUND. >> LIZ, WE KNOW HOW. SAFE AND SOUND. >> LIZ, WE KNOW HOW COMMITTED SAVANNAH HAS. >> LIZ, WE KNOW HOW COMMITTED SAVANNAH HAS BEEN TO THE VIEWERS OF. COMMITTED SAVANNAH HAS BEEN TO THE VIEWERS OF NBC, BUT THIS IS. BEEN TO THE VIEWERS OF NBC, BUT THIS IS BEYOND A FAMILY.

NBC, BUT THIS IS BEYOND A FAMILY TRAGEDY. BEYOND A FAMILY TRAGEDY. SAVANNAH WILL NO. TRAGEDY. SAVANNAH WILL NO LONGER BE TRAVELING TO. SAVANNAH WILL NO LONGER BE TRAVELING TO THE OLYMPICS THIS. THE OLYMPICS THIS WEEK? >> Reporter: THAT'S. WEEK? >> Reporter: THAT'S RIGHGHT. RIGHT. SHE WAS SUPPOSED TO HOST THE OPENING.