Nancy Guthrie abduction timeline: Authorities offer chilling new details

Investigators on Thursday offered an updated timeline on the abduction of Nancy Guthrie, the 84-year-old mother of "Today" host Savannah Guthrie.

In a press conference Feb. 5, Pima County Sheriff Chris Nanos told reporters that doorbell camera video had helped authorities piece together a new order of events for Guthrie's kidnapping. She was first reported missing Sunday, Feb. 1, after members at her local church called her family to signal concern that she had not attended that morning's services.

Here's a closer look at what we know so far, all times local and approximate:

At 5:32 p.m. on Jan. 31, Guthrie traveled to her family's house for a game night, authorities said. At 9:48 p.m., her family dropped her back at home, and the garage door opened. The garage door closed at 9:50 p.m.

At 1:47 a.m. on the morning of Feb. 1, authorities say that the doorbell camera in front of Guthrie's home disconnected. At 2:12 a.m., software for the smart home detected a person on the camera, but no video is available, given Guthrie's subscription plan.

At 2:28 a.m., Guthrie's pacemaker app shows it was disconnected from her phone. At 11:56 a.m., the family arrived to check on her, calling 911 at 12:03 to report her missing. Patrol cars arrived at 12:15 p.m.

Asked if the doorbell camera was in police custody, Nanos said: "We do not have it in our possession, we did not locate it," implying it may have been taken from the scene.

Nanos said they had been working with a tech company to attempt to recover the video, but had been unsuccessful.

"We know that the tech company … they've run out of ways to recover that video," he said.

"Right now, we believe Nancy is still out there," Nanos said at the start of the press conference, adding that several neighboring police departments had offered their services as well as agents from the FBI. "We want her home. Our department, the sheriff's department … have been working around the clock."

Full timeline of Nancy Guthrie's disappearance

• Jan. 31 at 5:32 p.m. Guthrie traveled to her family's house for a game night.
• Jan. 31 at 9:48 p.m. Her family dropped her back at home, and the garage door opened.
• Jan. 31 at 9:50 p.m. The garage door closed.
• Feb. 1 at 1:47 a.m. Doorbell camera in front of Guthrie's home disconnected.
• Feb. 1 at 2:12 a.m. Software for the smart home detected a person on the camera, but no video is available.
• Feb. 1 at 2:28 a.m. Guthrie's pacemaker app shows it was disconnected from her phone.
• Feb. 1 at 11:56 a.m. The family checks on her.
• Feb. 1 at 12:03 p.m. Family calls 9-1-1 to report her missing.
• Feb. 1 at 12:15 p.m. Patrol cars arrive.

This is developing story which may be updated.