They probably did not intend to kill the kid, only drive the "demons" out. They're fucking idiots though and managed to kill him. It's manslaughter unless it can be shown they intended to kill. That said, these boneheads are obviously dangerous and need to be put away so they don't hurt others.
Only two things are infinite, the universe and human stupidity, and I'm not sure about the former.
Albert Einstein
Albert Einstein