The search for Nancy Guthrie has taken a major turn after investigators released new doorbell-camera images from outside her Arizona home — the kind of evidence that can unlock a case with one tiny, recognizable detail. The footage shows a masked person at the front door, and officials say the public’s help could be critical in identifying clothing, posture, or other distinguishing features that might lead to answers.

Savannah Guthrie, host of NBC’s “Today,” shared the footage on social media and urged anyone who recognizes the individual to contact authorities, saying the family believes her mother is still alive. Reports say investigators notified the family before the images were released publicly, and that neither relatives nor investigators immediately recognized the person shown. The decision to share the footage widely was made in hopes that someone might connect a jacket, backpack, or other details to a real person.

Law enforcement activity has also focused on Rio Rico, Arizona, where authorities executed a search warrant at a home following a tip, according to reports. One person was detained for questioning and later released as the investigation continued, with officials not publicly confirming whether that individual is a suspect or simply someone questioned during the search.

As investigators analyze the images, experts have noted the figure appears calm and deliberate, and the FBI continues to encourage the public to review what’s been released for any identifying clue. For the Guthrie family, the footage is more than evidence — it’s a new chance for momentum in a case that has left them waiting for answers, and hoping the right person sees something familiar in a single frame.