LORI Vallow allegedly spoke about wanting to drive her children off a cliff, according to family members.
Relatives of the "cult mom" made the shocking revelation in an interview with that is set to air Thursday - as the search continues for her two missing children, 17-year-old Tylee and 7-year-old JJ.
is currently in Hawaii awaiting her next court hearing before likely being extradited back to Idaho.
She was arrested and charged with multiple offenses on Friday, including two counts of desertion and nonsupport of her children.
The whereabouts of Tylee and JJ are still unknown, and there is no evidence to suggest that Lori is cooperating with police on the matter.
Tylee's older brother Colby will appear on Thursday's episode of Dr Phil - where he confirms his mother "hasn't told anyone where the kids are."
DOOMSDAY BELIEFS
The talk then turns to Lori's Doomsday beliefs, which allegedly prompted her to say: "It would be better to put the kids in the car and drive off the side of a cliff."
There was little else revealed in the preview, but Colby did write a message for his sister and JJ on Facebook Tuesday morning.
"I pray for you both everyday. I always have to ask how is this possible? You both mean so much to me. My heart is broken over all of this. I’m going to speak with our mom," said Colby.
"I need to know what is happening with you both. Just know I love you with all of my heart.
"I’m here to stand up for you. I won’t leave no matter how hard this gets. I love you Tylee and JJ."
This is all happening just months after the death of Lori's fourth husband, and JJ's adopted father.
Charles Vallow submitted a Motion For Order to Appear in February of last year, shortly after filing for divorce from Lori and receiving an order of protection against his then-estranged wife.
He said in the filing that Lori "kept referring to Father as ‘Nick Schneider’ instead of Father’s name" during one business trip.
When Charles asked who that was, Lori "told him that Nick was Father’s real name because Nick had killed Father and taken his identity."
Lori then threatened Charles' life, he claimed in his 2018 motion.
"Mother proceeded to warn Father that she would kill him upon his return home and had an angel there to help her dispose of the body," read the filing.
"She also mentioned that she could not trust Father and that she would not only kill him but would destroy him financially. Since that conversation Mother’s communications with Father have been rare and intermittent."
Lori then followed through with that, according to Charles.
He came home to find his truck had been taken from the airport parking lot, which resulted in him having to get a ride to his home.
Once at the home he found his "desktop computer ... clothes and underwear, JJ's clothes, the service dog's collar, JJ's medication" and the boy's iPad were all gone from the home.
'WHERE ARE THE KIDS?'
JJ and his half-sister have not been heard from or seen since September, and Lori never reported the children as missing to authorities
It was not until Idaho police were contacted by JJ's aunt Kay that authorities were alerted to their disappearance.
Although JJ has been reported missing, Tylee has not been officially been declared as a missing person.
Police say the couple told one individual that Tylee had died a year before her father, while Chad said she had no minor children.
Vallow failed to comply with a January court order to produce her kids in five days and has had little to say about where they are.
After being questioned by Idaho cops, she bolted to Hawaii with religious author Daybell, who is a member of the Latter Day Saints Church.
Vallow and Daybell were married just a few weeks after the children were last seen - and both of their spouses have died in mysterious circumstances.
She reportedly became obsessed with his work heralding the end of the world while still living with her fourth husband, Charles Vallow.
Charles was shot dead by Vallow's brother Alex Cox, who then died in December, while Daybell's wife - and the mother of his five kids - Tammy also died.
When a judge questioned her Friday afternoon, Lori looked smug, disinterested and aloof despite facing a sentence that could put her behind bars for her natural born life.
'LIES'
Cops now believe Lori and her fifth husband "repeatedly lied" about the children's whereabouts after searching their rented car and condo.
They had been living in Hawaii since mid-December, leaving less than 24 hours after Idaho police questioned them about the whereabouts of Tylee and JJ.
Lori claimed her son was with other family members in Arizona, and then took off before cops could investigate further.
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They issued a statement though their lawyer denying the allegations against them, and dismissing the claims as nothing more than "speculation and rumor."
The two were reportedly staying in a million-dollar home in Princeville prior to their arrest.
Photos taken by people on the island showed them shopping, at the liquor store and island hopping during this time without a care in the world.
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