While Netflix’s riveting true crime series, Sins of Our Mother, brings Lori Vallow’s disturbing story back into the spotlight, it raises more questions about her family and relationships. As the ...

Lori Vallow’s brother said “death isn’t good enough” for his jailed sister. Vallow’s older brother Adam Cox made the comments during a new interview with ABC News’ “20/20” exploring Vallow’s past, her ...

REXBURG, Idaho -- Adam Cox has a hard time coming to grips with what has happened to his family. "Our family is nothing the way it used to be... You don't know who to trust, who's saying what, what ...

PHOENIX (AP) — Lori Vallow Daybell ’s brother told jurors Thursday at her Arizona trial that he believes she was behind the killing of her estranged husband. Adam Cox, a witness for the prosecution, ...

On Friday's episode of 20/20, Adam Cox discusses how his family has changed — and how sister Lori hasn't — since she became a murder suspect Lori Vallow and her husband, Chad Daybell, became household ...