Prosecutor: Couple talked by phone on day kids’ bodies found

Chad Daybell, left, sits with his defense attorney John Prior during his preliminary hearing in St. Anthony, Idaho, on Tuesday, August 4, 2020. A preliminary hearing continues to decide whether there is enough evidence to hold Daybell for trial. He and the children's mother face charges related to the hiding of the remains of 17-year-old Tylee Ryan and 7-year-old Joshua "JJ" Vallow, although authorities have yet to say how the two died. (John Roark/Post Register via AP, POOL)

Chad Daybell listens during his preliminary hearing in St. Anthony, Idaho, on Tuesday, August 4, 2020. A preliminary hearing continues to decide whether there is enough evidence to hold Daybell for trial. He and the children's mother face charges related to the hiding of the remains of 17-year-old Tylee Ryan and 7-year-old Joshua "JJ" Vallow, although authorities have yet to say how the two died. (John Roark/Post Register via AP, POOL)

BOISE, Idaho — A couple at the center of a mystery over the deaths of the woman’s two children were heard in a jailhouse recording speaking by telephone to each other on the day authorities found their bodies on the man’s property in rural Idaho in a case that has attracted national headlines.