Lori Vallow trial reveals disturbing details of children's deaths and brother's involvement.

Lori Vallow Daybell's 7-year-old son, who was allegedly murdered by her, had traces of a date-rape drug in his system when he was asphyxiated to death with a plastic bag and duct tape over his mouth. The child's autopsy also revealed scratch marks on his neck and bruises on his wrists and ankles where he was bound with duct tape, suggesting he was awake and trying to free himself as he suffocated. Vallow Daybell is charged with two counts of first-degree murder and three counts of conspiracy in the deaths of her children and her husband's previous wife.