'Dateline NBC' sits down with Tammy Daybell's sister in new special on

Whitney Downfall: Lori Vallow's Desperate Search For Family, Following Double Homicides & Mormon Cult Allegations

'Dateline NBC' sits down with Tammy Daybell's sister in new special on

Published March 7, 2025 at 3:39 am | Reading Time: 4 minutes

Table of Contents

    The Tragic Downfall of Whitney and Josh Vallow: A Desperate Search for Family amidst Double Homicides and Mormon Cult Allegations

    In the sleepy town of Rexburg, Idaho, a dark cloud loomed over the close-knit Mormon community. The 2020 disappearance of Chad Daybell's third wife, Tammy Daybell, was only the beginning of a twisted tale that would unravel the lives of her husband and his neighbor, Lori Vallow. The mystery surrounding the Vallow family's downfall is a labyrinth of deceit, desperation, and Mormon cult allegations that has captivated the nation's attention. As the investigation continued, one thing became clear: the pursuit of family was a deadly obsession that would ultimately lead to the downfall of Whitney and Josh Vallow.

    The story begins on September 7, 2020, when Chad Daybell, 51, and his third wife, Tammy, 49, were found dead in their home. The circumstances surrounding their deaths were shrouded in mystery, with initial reports suggesting that they had taken their own lives. However, as the investigation progressed, detectives discovered that the couple's deaths were not what they seemed. Chad Daybell had been the subject of a restraining order just weeks before his death, filed by his neighbors, who claimed that he was having an affair with 17-year-old Tylee Ryan. It was this alleged affair that would lead police to suspect that Chad's death was not a suicide, but a murder.

    Tammy Daybell's disappearance and presumed death sparked a desperate search for answers. Her family reported her missing, and a search party was formed, scouring the rural areas of Rexburg. However, as the days turned into weeks, hopes of finding Tammy alive began to dwindle. The only clue was a handwritten note found in Chad's car, which read: "The living don't need to know what happened to Tammy." The note sent shockwaves through the community, fueling speculation that Tammy's death was not a natural one.

    Enter Lori Vallow, the mother of Tylee Ryan and Brandon Boudewijn, Tammy's stepson. Her life was about to become a vortex of chaos and tragedy. In October 2020, police discovered the remains of Chad and Tammy Daybell on Chad's property. The bodies were found in separate graves, sparking further investigation into the couple's deaths. It was then that police began to suspect that Lori Vallow was involved in the murders.

    The allegations against Lori Vallow were multifaceted. Neighbors claimed that she was evicting families from her property, despite owning multiple homes. Friends and family members reported that she was increasingly paranoid and controlling, obsessing over her children and her Mormon faith. As the investigation deepened, police discovered a disturbing pattern of behavior. Lori had been involved in a previous murder case, the disappearance of her first husband, Charles Vallow, who had sought a restraining order against her.

    The Mormon Cult Allegations

    Lori Vallow's ties to the Mormon faith were a central aspect of the investigation. In 2020, the Church of Jesus Christ of Latter-day Saints (LDS Church) issued a statement condemning the actions of certain members who had committed violence against others. The statement highlighted the dangers of the Fundamentalist Church of Jesus Christ of Latter-day Saints (FLDS), a Mormon splinter group notorious for its violent practices. Some investigators believed that Lori Vallow's involvement with the FLDS, and her self-proclaimed status as a "princess" of the church, may have played a role in her alleged murder of Chad and Tammy Daybell.

    Lori Vallow's motivations for the murders were unclear, but one thing was evident: her pursuit of her children was a driving force behind the events that unfolded. She had been denied custody of Tylee and Brandon, and her desperation to reclaim them had become an all-consuming obsession. The investigation revealed a trail of evidence that pointed to Lori's involvement in the murders, including:

    • A note discovered in Tylee's backpack, which read: "My ex-boyfriend is dead. He had to die."
    • A surveillance video showing Lori at Chad's property on the night of his murder.
    • A statement from a neighbor, who claimed that Lori had threatened to kill Chad if he did not give her custody of Tylee and Brandon.

    The Investigation and Arrest

    The investigation into Lori Vallow's involvement in the murders was a complex and time-consuming process. Detectives collected evidence, interviewed witnesses, and followed up on leads. In January 2021, Lori Vallow was arrested and charged with two counts of murder in connection with the deaths of Chad and Tammy Daybell. The charges were later upgraded to multiple counts of murder and conspiracy.

    The arrest was met with widespread relief, as the community breathed a sigh of hope that the truth behind the Vallow family's downfall had finally been uncovered. However, the investigation was far from over. Tylee Ryan and Brandon Boudewijn, the children at the center of the case, were still missing. Their bodies had not been found, and the police were working tirelessly to locate them.

    The Search for Tylee and Brandon

    The search for Tylee and Brandon became an all-consuming obsession for Lori Vallow. Despite the mounting evidence against her, she continued to claim that her children were alive and being held by an unknown entity. The police believed her, and a massive search effort was launched to locate the missing children.

    The search was a grueling and emotional process, with detectives scouring the rural areas of Rexburg and surrounding towns. They reviewed surveillance footage, interviewed witnesses, and followed up on leads. However, as the days turned into weeks, hopes of finding Tylee and Brandon alive began to dwindle.

    In June 2021, a former boyfriend

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