Daybell's doomsday religious beliefs led her to kill her two youngest children and plot to kill a romantic rival and her estranged husband.

Dubbed the "doomsday mom," Lori Daybell has maintained that her brother shot her then-husband of 13 years, Charles Vallow, in self-defense in her home in Chandler, Arizona, in July 2019. Her brother, Alex Cox, died from natural causes months after the shooting. She had pleaded not guilty to conspiracy to commit first-degree murder.