FBI agent uses phone data to show where Chad Daybell was when JJ and Tylee disappeared
An FBI agent who specializes in analyzing cellphone records testified Monday in the Chad Daybell murder trial about phone locations that helped in his investigation. Nickolas Ballance said after the bodies of 7-year-old Joshua "JJ" Vallow and his sister 16-year-old Tylee Ryan were located in Chad Daybell's backyard,