i don't know about all the school shooters...but the grandfathers of school shooters (if we can call them that) from columbine both had fathers at home. they were white middle class students with both parents at home. if you want to spend the time to check out all the other school shooters and confirm or deny whether they had dads at home or not please do. it was tougher than i thought to find out the status of those 2 fathers when i tried to find out how much truth their was to your claims. lots of right wing sights pop up when i search for whether or not the school shooters come from fatherless homes. but nothing else. i had to search through the histories of those 2 idiots to find out their parents were both there.