Photo Credit: Chip Somodevilla/Getty Images Savannah Chrisley shared a "bittersweet" update about her dad Todd Chrisley's prison stint. She also added that she believes he has been threatened while behind bars. Looks like things may get worse before they get better for the former stars of the reality show Chrisley Knows Best. This isn't the first time Savannah has talked about Todd and even Julie Chrisley's time in jail. She has been regularly fighting to get them released. Sassy was so distraught about her parents' fate, that she could barely function during their trial and she . . .