FILE - In this March 6, 2020, file photo, Lori Vallow Daybell glances at the camera during her hearing, with her defense attorney, Edwina Elcox, right, in Rexburg, Idaho.
Daybell's husband, Chad Daybell, was charged this month with concealing evidence by destroying or hiding the children's bodies.
Investigators found the remains by tracking the movements of Lori Daybell's brother, Alex Cox, using his cellphone data.
Lori Daybell reportedly told her friend Melanie Gibb at different times in 2019 that both JJ and Tylee had become zombies.
Authorities grew suspicious when Chad Daybell married Lori just two weeks later, and they had Tammy Daybells body exhumed in Utah in December.