Savannah Guthrie's sister, Annie Guthrie, was the last person to see their mom, Nancy Guthrie, before she was reported missing in Arizona, Us Weekly can confirm. Pima County Sheriff Chris Nanos exclusively spoke to Us on Monday, February 2, revealing what police know about what happened in the hours leading up to her disappearance. "We have a start point," Nanos said. "The family took her home from dinner at about 9:30 to 9:45 [p.m.]" on Saturday, January 31. "So we would back that up to even say 9 or 8:30 p.m. to start looking." Nancy Guthrie, Savannah Guthrie, Annie Guthrie.