00:02New reporting this morning raises new questions in the disappearance of Nancy Guthrie.
00:07CBS News reports DNA recovered from inside Guthrie's Tucson, Arizona home
00:12may not be strong enough to generate a usable profile.
00:16Sources close to the investigation describe the sample as low-level,
00:20meaning there may not be enough material to produce a clean match in federal or private DNA databases.
00:26The Pima County Sheriff's Department says its contracted lab is still analyzing the evidence
00:32and has not reached a final conclusion.
00:35Investigators are also turning to genetic genealogy,
00:38the same technique used in high-profile cases like the Golden State Killer,
00:43searching public DNA databases for potential relatives of an unknown suspect.
00:48So far, no arrests, no name suspect.
00:51Just the video you see here captured on her doorbell camera.
00:54Now, as the case enters its fourth week, the Guthrie family is dramatically increasing the pressure.
01:01Savannah Guthrie, host of the Today Show, announced her family is offering a private reward
01:06of up to $1 million for information that leads to the finding of her mother.
01:10But we need to know where she is.
01:14We need her to come home.
01:18For that reason, we are offering a family reward of up to $1 million
01:26for any information that leads us to her recovery.
01:31The FBI is separately offering a $100,000 reward
01:35and urging anyone with firsthand knowledge to call the tip line.
01:39Sheriff Chris Nanos has cleared Nancy Guthrie's children and their spouses as possible suspects.
01:45And every hour and minute and second and every long night has been agony since then
01:53of worrying about her and fearing for her and aching for her.
02:02And most of all, just missing her.
02:05Just missing her.
02:09Investigators continue to process evidence, review surveillance, and follow up on tips.
02:14This morning, the case remains open, and the family says they will not stop searching.
02:19Nancy Guthrie has now been missing for the entire month of February.
02:23Newspaper.
02:25Newspaper.
02:25Newspaper.
02:25Newspaper.
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