What happened to Tara Grinstead was a mystery for over a decade, but not jurors in the trial of Bo Dukes hear his confession to charges of helping Ryan Duke burn the Georgia beauty queen and high school teacher's corpse after she was strangled to death. This episode opens with a special report from the trial. Also, dogs can be your best friend, but sometimes these pets kill. Nancy Grace explores recent animal attacks with experts including animal trainer and zoologist Dr. Grey Stafford -- host of Zoo Logic podcast, the director of legal affairs at Animal Protection League of New Jersey Doris Lin, Atlanta lawyer and animal activist Penny Douglas-Furr, and Crime Stories reporter Robyn Walensky.