In reply to MG:
> Hard to know in any specific case but it does always seem that these murderers were "gentle loving people who never gave any hint of extremism" etc etc. Doesn't seem very credible to me.
That's similar to what people said about Harold Shipman, remember? How lovely he was.
There's a lot of potential for concealment (and from that deception) within human nature.
We can't know what these people are like as family members etc.
If you're assuming that there are signs which people don't act upon, does that imply some collective responsibility for the events which follow, amongst the people who know them too?
It can seem like you're blaming more people than those who kill innocent people?
Post edited at 11:43