Lori Vallow Daybell has been handed two further life sentences after she was convicted of conspiring to kill her fourth husband and her niece's now ex-husband.

Lori Vallow Daybell, the Idaho woman serving life in prison for the murders of her two youngest children and a romantic rival, was sentenced to two consecutive life sentences in Arizona for conspiring to kill her estranged husband and attempting to murder her niece's ex-husband.

Lori Vallow Daybell was sentenced to life in prison Friday on two murder conspiracy convictions in Arizona, marking an end to a winding legal saga for the mother with doomsday religious beliefs who claimed people in her life had been possessed by evil spirits.