Article continues below advertisementMegyn Kelly shared her theory about why police keep returning to the home of Nancy Guthrie's son-in-law, Tommaso Cioni, and daughter Annie Guthrie. "The reason they are going back to Annie and Tommaso's house all the time, I think, is they're wondering if they had anything to do with it," the media personality, 55, said in a video posted on Thursday, February 12.