The Idaho Supreme Court is scheduled Monday to hear Lori Vallow Daybell's appeal of her convictions in that state for killing her two youngest children and conspiring to murder a romantic rival.

She is asking the court to reverse her convictions in the deaths of Joshua "JJ" Vallow, Tylee Ryan and Tammy Daybell, whose husband married Vallow Daybell weeks later.

Vallow Daybell holds doomsday religious beliefs and has claimed that people in her life were possessed by evil spirits.