Since mental illness is the crux of this case, one would think that the history of Adam Lanza's IEPs and his family's interviews with mental health professionals over the years would be central to the investigation. Has anything about mental illness, other than the barest hint of the Asberger's, come out of the report documenting the investigation? The other part is the utterly incompetent, although not legally criminal, way his Mom, his Dad, and his brother dealt with Adam Lanza's mental health issues. They all basically threw up their hands and refused to deal with it. No matter how mentally impaired Adam Lanza was, his nuclear family made it a million times worse by "how" they dealt with him. Since his mom paid with her life, I can only say that the Dad and the brother will live the rest of their lives in denial. They will never admit how they contributed massively to his condition. Yes, Adam Lanza needed major help, which he did not get, from mental health professionals, but the rest of his family did too. You need to "learn", truly learn, how to deal with someone in your family with major mental illness problems. You don't abandon your family (as the father did -- it was not money Adam needed, it was a father), you don't move away to New Jersey (like the brother did). You don't go on a 3-day jaunt leaving the mentally ill person alone stewing in his own juice (like the mother did). And that is just the tip of the iceberg.
This is a textbook case of how a family should NOT deal with mental illness. The mother, the father, and the brother made endless mistakes. Major mistakes. Truly incredible mistakes. And the result is clear to all.