She was buried in Utah, but her remains were exhumed two months later after an investigation by the Fremont County Sheriff's Office determined that her death may be suspicious.
Daybell's attorney, John Prior, didn't immediately respond to a request for comment.
Human remains have been found at an Idaho home that was searched Tuesday during a probe into the disappearance two children - a case that drew national attention after it was featured on NBC Dateline. Their mother, Lori Vallow, was arrested in February in Hawaii on a raft of charges that included two felony counts of desertion and nonsupport of dependent children. The search warrant is sealed, and Rexburg Assistant Police Chief Gary Hagan said he couldn't reveal details other than the search is linked to the children's disappearance.
Lori Vallow also known as Lori Daybell
Daybell is being charged with two counts of felony destruction and concealment of evidence.
In court documents, Madison County Prosecutor Rob Wood said he believes Chad Daybell either concealed or helped hide the remains knowing that they were about to be used as evidence in court.
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The missing persons case has drawn global attention because of the apocalyptic religious beliefs of Daybell, 51, and Vallow, 46, who married shortly after both of their spouses had died.
Police from the small town of Rexburg, the Federal Bureau of Investigation and sheriff's investigators searched Chad Daybell's home in the eastern Idaho town of Salem for the second time, bringing in backhoes and setting up tents in a nearby field.
Tammy Daybell died in her sleep last October of what her obituary said were natural causes. Wood said the first body was hidden or destroyed sometime on or after September 8 - the last known day that Tylee was seen - and the second on or after September 22, the last known day that JJ was seen. Results of an autopsy in that case have not yet been released. They said Lori Daybell wouldn't tell them why the boy was always unavailable. When officers stopped by to question Lori Daybell, they said she and Chad Daybell lied about the children's whereabouts. He said she claimed to be "a god assigned to carry out the work of the 144,000 at Christ's second coming in July 2020".
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Shortly after Charles' death, Lori, a former fitness instructor, left her Arizona residence and moved to Idaho, after being in touch with Daybell via a podcast and group meetings.
Meanwhile, JJ's grandparents, Larry and Kay Woodcock of Louisiana, were growing increasingly anxious about the kids.
In the weeks since, the Idaho attorney general's office took over the investigation into Tammy Daybell's death, while Lori Daybell has tried and failed to get her bond lowered.
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