Hmm . . .
Everything Harris says here is true, and yet --
While atheism per se indeed has no doctrines, "New Atheism" is closely tied to mechanistic materialism, which does, and which is itself a faith-based belief system.
Also, once again we find a discourse that should be addressed to Abrahamic religions addressed instead to religion generally.
Finally, I have to wonder about that last paragraph. As far as I know, nobody is blaming atheism for specific crimes. The closest I've seen to that, is pointing out that atheism does not prevent crimes, that an atheist regime like Stalin's Soviet Union has historically proven itself capable of villainies as great as those of any theocracy. This is not an accusation against atheism (since obviously atheism is not a prerequisite for such ugliness) but rather a defense of religion, and makes the point that the cause of atrocities committed by theocracies is not religion (since, clearly, religion is not a prerequisite, either) but something else, such as authoritarianism and lack of public accountability.
It's a valid point, so if Harris was referring to that, he's off-base. If he was referring to something else, I don't know what it could be.