India, Feb. 9 -- A week has passed since 'Today' show host Savannah Guthrie's mother, Nancy Guthrie, disappeared from her Arizona home. Investigators have yet to name a suspect, but are holding out hope that the 84-year-old is still alive. Police reportedly said that Nancy was taken against her will from her home in Tucson, Arizona, where they found blood on the porch that matched hers.

Soon after her disappearance, Pima County Sheriff Chris Nanos stated that authorities believe Nancy was kidnapped, abducted or otherwise taken against her will. Nancy had mobility issues, so officials believed that she could not have left on her own.

Meanwhile, Nanos also said that Nancy Guthrie was of sound mind. "This is not dementia-related. She's sha...