Guthrie’s disappearance has garnered wall-to-wall coverage in US media, with dozens of reporters and camera crews descending on the quiet Arizona suburb where she lives.
President Donald Trump said he had ordered “ALL Federal Law Enforcement to be at the family’s, and Local Law Enforcement’s, complete disposal, IMMEDIATELY”.
His press spokeswoman opened her daily press briefing with the subject.
“The President, as you all know, spoke directly with Savannah yesterday and told her that the federal Government is here to help,” she told the White House press corps.
Sheriff Nanos – who earlier this week admitted he was not used to the kind of national scrutiny that comes with a case like this – gave the first detailed timeline of events after Guthrie was dropped off at her home at 9.48pm Saturday.
At “that time we assume that Nancy’s home and going to bed”, he said.
“At 1.47am the doorbell camera disconnects.
“2.12am, software detects a person on a camera, but there’s no video available.
“2.28am Nancy’s pacemaker app shows that it was disconnected from the phone.”
At that point, the trail went cold, Nanos said.
FBI special agent in charge Heith Janke said the agency’s director Kash Patel was receiving updates on the case.
He also announced a $50,000 reward for information leading to the rescue of Guthrie, or to the arrest and conviction of the person responsible for her disappearance.
Nanos said time was of the essence.
“She is in need of daily medication,” he said.
“It’s day four or five, and we don’t know that she’s getting her medication.
“That could, in itself, prove fatal.”
The news conference came the day after Savannah Guthrie tearfully pleaded with kidnappers to share proof of life.
“We need to know without a doubt that she is alive and that you have her,” Guthrie said in a video posted to social media.
Flanked by family members, the 54-year-old said: “We want to hear from you and we are ready to listen.”
-Agence France-Presse