A religious perspective on the Connecticut killings:

What the killer(s) did today was nothing less than a contemporary sacrifice to Moloch, in whatever form Moloch manifests himself today—the appeasement of a voice in the head, most likely. Evil, even if it is loosed due to mental illness, is an effort to destroy the common good by making good appear powerless, ineffectual, weak. Today saw a horrifically effective effort to give evil a victory. It has opened a portal and brought Hell to earth.

Screwtape would report a job well done.