If they have to believe in a mythical deity that dispenses "justice" post-death in order to quell their urges to commit murder, they probably should be treated for mental illness or otherwise removed from society, as they are a ticking time bomb.

Yes? Civil society cannot allow itself to be held hostage by the threats of an unhinged fringe.

If they are sincere, it's very useful to allow them to identify themselves by publicly announcing this in advance. Much easier to stop them before they get going if you know who they are.

There needs to be some evidence for this. You can’t just claim some religious people want to kill everybody. Link please or this is a blatant lie.