Investigators have recovered new images from motion-activated cameras at the Tucson home of Nancy Guthrie, the 84-year-old mother of NBC "Today" show host Savannah Guthrie, in the latest development of her disappearance case.

The Pima County Sheriff's Department said it's still analyzing "various forms of evidence" as the search for the missing 84-year-old continues.

The sheriff in charge of the investigation into Nancy Guthrie’s disappearance says while they still don’t know who broke into the 84-year-old woman’s home to kidnap her, they do believe they know his motive and say he could “absolutely” strike again.

Investigators are continuing to comb through evidence and camera footage as the search for Nancy Guthrie continues nearly six weeks later.

The release of video footage and photographs of Nancy Guthrie's kidnapper has significant implications for the investigation. Chip Massey, a retired FBI hostage negotiator, commented on the recent developments surrounding the case,

Tomorrow will mark six weeks since Nancy Guthrie was reported missing. There have been plenty of tips and leads in the suspected kidnapping case, but thus far, no major breaks reg

Authorities believe she was kidnapped and said drops of her blood were found on the front porch.

Nancy Guthrie's disappearance in Tucson, Arizona, is entering a more dangerous phase as the search for the 84-year-old nears the two-week mark. A retired FBI hostage negotiator has warned that newly released images of the suspected kidnapper may be 'losing control' of the balance of the case.

The flashlight held by Nancy Guthrie's kidnapping suspect on the morning of her disappearance could hold vital DNA evidence, according to an expert.