It's a contentious start to Day 10 of Lori Vallow Daybell’s murder trial, when Lori's sister, Summer Shiftlet, blows up on a phone call with Lori, having been blindsided by Lori already knowing her kids were buried in her new husband’s backyard. An agent testifies in depth about finding the children’s remains, and how it was extremely difficult to identify Tylee, whose remains had been dismembered and charred. Then, the court sees surveillance footage showing both Lori and Alex storing and later removing a spare tire and rear car seat from the unit.