Savannah Guthrie begs for her mom Nancy’s safe return as new video and shocking doorbell footage raise more questions

Savannah Guthrie is making a tearful plea to her mother Nancy Guthrie’s kidnappers in a new video.

In the clip, shared on Instagram on Sunday, Feb. 15, the Today anchor urged “whoever has her or knows where she is” to come forward.

“It’s been two weeks since our mom was taken. And I just wanted to come on and say that we still have hope. And we still believe,” Savannah, 54, began her message.

Addressing Nancy’s kidnappers directly, she continued, “I wanted to say to whoever has her or knows where she is that it’s never too late. And you’re not lost or alone. And it is never too late to do the right thing. And we are here. And we believe. And we believe in the essential goodness of every human being.”

“It’s never too late,” she concluded the emotional video, adding in the caption: “Bring her home. It’s never too late to do the next right thing.”

Savannah’s latest comments come shortly after she shared a post on Instagram on Thursday, Feb. 12, including a video from her childhood of her mom. In the post, Savannah wrote, “Our lovely mom. 💛 We will never give up on her.”

The update came as the search for Nancy entered its 12th day. Nancy was last seen on Jan. 31, and an urgent search began on Feb. 1. On Wednesday, Feb. 11, the Pima County Sheriff’s Department told PEOPLE that the investigation “is still operating” on the belief “that Nancy is alive.”

Savannah previously shared footage and photos on social media on Feb. 10, showing an armed subject who was caught on surveillance video at the door of Nancy’s house the night she disappeared.

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“We believe she is still alive. Bring her home,” Savannah wrote in a post after the photos were released.

Pima County Sheriff Chris Nanos said that the “previously inaccessible new images” and video were “uncovered” by law enforcement and partners and showed “an armed individual appearing to have tampered with the camera at Nancy Guthrie’s front door the morning of her disappearance,” in a post on X.

“Over the last eight days, the FBI and Pima County Sheriff’s Department have been working closely with our private sector partners to continue to recover any images or video footage from Nancy Guthrie‘s home that may have been lost, corrupted, or inaccessible due to a variety of factors, including the removal of recording devices,” FBI Phoenix Public Affairs Officer Brooke Brennan said in a statement shared with PEOPLE.

The most recent update in the investigation came on Sunday, when the FBI announced that a glove with DNA found near Nancy’s home has seemingly been tied to the subject pictured in the surveillance footage from the abduction site.

The recovered glove “appears to match” the gloves worn by the “armed individual” pictured in the video previously released by authorities, an FBI spokesperson said in a statement obtained by PEOPLE on Feb. 15.

“The one with the DNA profile recovered is different and appears to match the gloves of the subject in the surveillance video,” the FBI spokesperson said.

The Pima County Sheriff’s Department (PCSD) previously confirmed in a statement obtained by PEOPLE and shared on social media that deputies had “detained a subject during a traffic stop south of Tucson.” ABC News reported that authorities were preparing to search a location linked to the person. In a later statement, the PCSD told PEOPLE, “Investigators have completed their search of a property in Rio Rico. Nancy Guthrie investigation is ongoing.”

The man was later released. He identified himself as Carlos Palazuelos of Rio Rico, Ariz., about 60 miles south of Tucson, where Nancy lives. He told reporters he “didn’t do anything,” per KVOA.

“I hope they get the suspect, because I’m not it,” he said. “I hope they get the suspect so I can clear my name.”

The FBI is urging anyone with tips or leads to call 1-800-CALL-FBI in addition to the Pima County Sheriff’s Office number, 520-351-4900.