Lori Vallow Daybell's Children's Deaths Revealed in Emotional Trial Testimonies.

Forensic pathologist Dr. Garth Warren testified that Lori Vallow Daybell's youngest son, JJ, had traces of alcohol and GHB, commonly known as a date rape drug, in his system when authorities discovered his body. Warren also testified that JJ died from asphyxia by plastic bag to the head and duct tape over the mouth. Vallow Daybell and her husband, Chad Daybell, are accused of murder in connection with the deaths of JJ and her daughter, Tylee Ryan. Warren also determined that Tylee's cause of death was homicide by unspecified means, but could not pinpoint exactly what that was due to the severe decomposition and burning of her organs.