[Margaret Pilkington]

Rob, we can do nothing to change what has happened already.

Crimes of this nature make us impotent....I doubt that any intervention would have changed this....the guy would have got a gun from somewhere else if his mother didn't have one...he was hell bent on causing this harm...for what reason, we cannot know - ever. He took his motives with him.

The people who believe in a God(or supreme being - whatever you want to call it) will be relying on their faith to get them through it...and even if we ourselves, do not subscribe to their faith, we have to let them get what comfort they can from it. It might be all they have.
Some will find their faith destroyed, some will find their faith strengthened and renewed.