This is a good question. I ponder on it every now and then, I don't think its God letting. I think we as human are allowed to make our choices good or bad and if you are a "true Christian" and you raise your children to be "true Christians or believers even if bad things happen to you- you will get through it. I am reminded of Joseph and Daniel and other people in the bible. Look even the possibilty of being thrown in the fire or being thrown in the lions den would have shaken me to the core I don't know if I could have done it. truthfully, But they were WILLING to go through it. The diciples were willing to get beat, even have their heads removed from their bodies. Bad things will happen --this world belongs to satan but if you hold fast in Christ- it should not matter- will it hurt yes it will. To see my child hurt would devaste me but as long as my child is in christ I will know they are where they belong. But if my child is not in christ this is a thing I cannot get past because there is no hope, nonewhatsoever this is the worst crime, no matter what happens. As long as you are in christ you don't have to worry about what happens to this body on this earth. I am going to say this children (below 13 or better who have not yet known the difference between right and wrong fully, as adults do) who died in a crime or even who just die for whatever reason, have no waiting period they go straight to heaven. Straight there is no judgement for them. None at all. No sleeping they are immediately with the father. I feel sad, I feel pain when I hear on the news someones child is gone not for the child but for the mother - the family for they will miss the child and its so painful but the child is in wonderland in heaven with Jesus and is fine and have no memory of anything that happen down here. I feel sorry for the teenager or young adult that dies in a crime and had not accepted Jesus as their savior for whatever reason. For their fate is sealed.