"[Government is] still trying to determine if anything else led to the slaughter."
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"Still trying to determine what else led to this?"  Clearly, this monster is to blame; but family and those who knew him and what he was capable of over this entire time are guilty of allowing him to live anywhere other than prison for the rest of his life. EVERYONE who knew him knew exactly "what led to the slaughter."  Classmates, family, ex-family, coworkers: they all say the same thing, and even when some of them said something, government failed to take action.  The Police have admitted they failed to act-- the Air Force has admitted it failed to act and did not follow the right thing to do:  the lack of justice and oversight throughout his worthless life was made possible by government ineptness. To pin this on anyone or any organization other than those listed above is beyond wrong.