My heart breaks for all of the people touched by this horrific deed. I know it will be with you forever. You have to go on for the rest of your families. Take time for yourselves to griev, even if you are having a moment anytime in the future. No one can ever tell you why this happened, you can't look for that answer. It is the would haves, should haves and could haves that will get to you. If you give up now, which is very easy to do, you will have no future to enjoy life and the rest of your families. Take time but know you are loved and needed by others. Draw strenght from family and friends even strangers. People are there for you just have to reach out. Don't put yourself in a bubble. I give you all my prayers and love to some how deal,in your own ways, with your horrific losses.