beliefnet
If they are athiest murders they are clearly INSANE.
If they are christian murders its the religion's fault, - RCCU
With
or without religion, good people can behave well and bad people can do
evil; but for good people to do evil — that takes religion. - Steven
Weinberg
Good people which are the overwhelming majority of humans will behave
well that is they will conform to the prevailing ethos of their
community. There will be a few sociopaths sane or insane that will
violate the norms of the community, but normally they will be removed
quickly by the good people in the community.
It
takes a strong belief in the doctrines of a "god" to change the
prevailing ethos of the community to promote or tolerate evil. The
religion may be secular in that the "god" is human but it takes a well
buttressed belief system in something or someone promoting that
something to allow good people to partition off the evil in their
minds.
Miniver Cheevy
A group of people no matter how
committed can never accomplish anything.
History shows that on any scale, large or small it is always a single
committed individual that for good or usually for not so good can feel the
prevailing needs of a large group of followers and provide a focus for their
beliefs. Whether it is a genetic imperative as some argue, or a conditioned
belief like the major religions, without a committed leader nothing
happens. The leader may be supernatural,
which is the power of religions, or human, but H. Sap. need to believe in
something or someone to do anything.