Nancy Guthrie disappearance timeline: Search focuses on masked suspect

The Nancy Guthrie disappearance timeline has stretched from a missed Sunday church service in Tucson to an FBI search for a masked man seen at her door, as investigators ask the public for the tip that could bring the 84-year-old home.

Guthrie, the mother of “Today” co-host Savannah Guthrie, was reported missing Feb. 1. Pima County Sheriff Chris Nanos has said investigators believe she was abducted from her home and that her family has been cleared of any involvement.

What happened to Nancy Guthrie?

Authorities say Guthrie was last known to be home late Jan. 31 and was found missing the next day under concerning circumstances. The FBI and sheriff’s department are investigating possible ransom messages, surveillance video, DNA evidence and items linked to a suspect seen outside her home.

• Jan. 31: Authorities said Guthrie arrived at daughter Annie’s home at 5:32 p.m. for dinner and was dropped back at her own home around 9:48 p.m. by her son-in-law, Tommaso Cioni. Nanos said her garage door closed at 9:50 p.m.
• Feb. 1: Her doorbell camera disconnected at 1:47 a.m., and her pacemaker app disconnected from her phone at 2:28 a.m., according to Nanos. After she missed church, relatives checked on her and alerted the sheriff’s department around noon. Officials said Guthrie has limited mobility and needs daily medication.
• Feb. 2: Nanos said the case was being treated as a crime and asked neighbors to review camera footage. He told CBS News he believed Guthrie had been abducted and did not leave willingly.
• Feb. 3 to Feb. 5: Investigators examined an apparent ransom note demanding bitcoin and blood found at the scene. Nanos later said blood found outside the home was confirmed to be Guthrie’s. The FBI announced a $50,000 reward, and officials said an alleged impostor had been arrested over a phony ransom demand.
• Feb. 4 to Feb. 9: Savannah Guthrie and her siblings Annie and Camron released public pleas for their mother’s return. Savannah Guthrie said her mother was without the medicine she needs. President Trump said on social media that federal law enforcement would be made available to the family and local authorities.
• Feb. 6 and Feb. 7: CBS affiliate KOLD received a second message tied to the case, and the sheriff’s department said investigators were checking its authenticity. Savannah Guthrie later said in a video that the family had “received a message” and “will pay” for Nancy Guthrie’s safe return. The Associated Press reported an FBI spokesman said she was referring to the KOLD message.
• Feb. 10 and Feb. 11: The FBI and sheriff’s department released images and videos from Guthrie’s home security system showing a masked person with gloves and a backpack at her door. A person was detained after a traffic stop south of Tucson, authorities said. A man who identified himself to reporters as Carlos later said he had been released and denied involvement, though authorities did not confirm he was the person of interest.
• Feb. 12 to Feb. 15: The FBI described the suspect as a man of average build, about 5-foot-9 or 5-foot-10, carrying a black 25-liter Ozark Trail Hiker Pack backpack. The reward was raised to $100,000. Investigators found a black glove near Guthrie’s home, and the FBI said preliminary testing showed an unknown male DNA profile on a glove that appeared to match the one in the surveillance video.
• Feb. 16: Nanos said all Guthrie family members and their spouses had been cleared as suspects. He also told CBS News investigators believe the suspect’s clothing and face mask were likely bought at Walmart, either in a store or online, and that Walmart had provided records tied to Ozark Trail Hiker Pack purchases.

The FBI has said the backpack is one of the visible clues from the recovered doorbell footage. Nanos called it one of the most promising leads, while Walmart declined to comment to CBS News.

Authorities are urging anyone with information to call 520-882-7463. FBI and local investigators have said they are still seeking a suspect and are continuing to review tips, video and physical evidence in the case.

This story draws on original reporting from CBS News.