The Lori and Chad Daybell case is a high-profile criminal investigation involving the disappearance of two children, Tylee Ryan and JJ Vallow, and the deaths of several other individuals connected to the couple. Lori and Chad are both members of a religious group that holds apocalyptic beliefs, and their actions leading up to and during the investigation have raised many questions.

Lori had previously been married several times before meeting Chad, and the death of her brother, Alex Cox, under suspicious circumstances has also come under scrutiny. Tylee and JJ went missing in September 2019, and their disappearance led to a nationwide search. During the investigation, it was discovered that Lori and Chad had made several misleading statements and attempts to avoid cooperating with law enforcement.

In June 2020, the remains of Tylee and JJ were found on Chad's property, leading to the arrest of Lori and Chad on charges related to their disappearance and deaths. As the investigation continued, it was revealed that several other individuals connected to the couple had died under mysterious circumstances, leading to further charges against the couple.