Male, from reasonably affluent families. Out of touch Mothers in my opinion. This shooter was treated for mental problems and he knew about and had access to his Mother's guns. I have seen way to many mothers who just say "No, my boy couldn't have done that." Or, make grand excuses when they are caught doing something wrong. Or, deny the facts when they are point blank and obvious. They treat these children as children into their twenties. I think parent training is in order. Just an opinion.