Article continues below advertisementAs Nancy Guthrie remains missing, internet sleuths continue to speculate that someone she knew was involved in her disappearance. One person who has come under intense public scrutiny since Today host Savannah Guthrie's mom vanished on February 1 is her son-in-law Tommaso Cioni. Despite being cleared as a suspect early on, social media reactions to old videos of him that surfaced this week prove some still find him suspicious.