Graphic details released pertaining to JJ Vallow's and Tylee Ryan's deaths

Dr. Garth Warren, who did the autopsies, took the stand on April 26. Warren is the Ada County coroner and chief forensic pathologist. He told the court that JJ died of asphyxiation by a white plastic bag placed over his head and duct tape over his mouth. Warren determined JJ was smothered and found signs of a struggle. As for Tylee, she died by homicide, according to Dr. Warren but there is no specific cause of death.