details of the shooting this week in the school behind me and an impassioned plea for why she believes the parents must be prosecuted. while the shooter entered the high school and pulled the trigger there are other individuals that con triblted to this. reporter: in a rare move a prosecutor holding the parents of a school shooter responsible in the deaths of four teenagers hunted down prosecutors say by their son. anyone with the opportunity to stop this from happening to have done it. reporter: james and jennifer each charged with four counts over involuntarily man slaughter following tuesday s attack. we have confirmed injuries. reporter: the oakland county prosecutor saying the father bought the handgun used in the shooting four days earlier with the 15-year-old son ethan by his side. ethan later posting a picture on social media with the caption just got the new beauty today and the mother in her own now