Their brother Adam Cox said on the witness stand of his siblings, per the AP, "No doubt in my mind that they killed him." Alex Cox died of a blood clot in his lungs five months after Vallow's death.

Tonight on “Courtroom Insider,” Lori Vallow Daybell’s brother Adam Cox takes the stand. So does Kay Woodcock, an old friend and others. Nate Eaton breaks it all down.

The brother of Lori Vallow Daybell took the stand in an Arizona court, claiming there was “no doubt” in his mind that the defendant conspired to kill her fourth husband. On Thursday, April 10, 2025, ...

Adam Cox, Lori Vallow Daybell's brother, testified that he believed Charles Vallow's death was the result of a conspiracy. Cox testified that Charles Vallow had expressed concerns about Lori ...