Article continues below advertisementPima County Sheriff Chris Nanos may have found another clue that could help authorities locate Savannah Guthrie's missing mom, Nancy Guthrie.In the doorbell camera footage, the male suspect was wearing gloves, and in one frame, there appears to be a bump near the pinky finger, which Nanos thinks could be a ring.Article continues below advertisementSource: megaNancy Guthrie's suspected kidnapper may have been wearing a pinky ring."I'm going to give that to my team. They'll look at that. They'll analyze it and we'll see," he shared with NBC News.