His conclusion is straightforward:
everyone who wrote or signed [the memo] strikes me as morally unfit to serve the United States.
If anyone in the higher levels of government acted in reliance on this advice, those persons should be impeached. If they authorized torture, it may be that they have committed, and should be tried for, war crimes. And, as we learned at Nuremberg, “I was just following orders” is NOT (and should not be) a defense.
And that's just what he has to say about the first 56 pages.