I've just seen some snippets from the statement of the parents in the Tucson case (link, link). My no-snark impulse is: they seem to have written it themselves. And I'd mark this up to their credit: in their private desolation at least they don't seem to have allowed themselves to get spun by a spin doctor.
Yes, yes, I hear you. And it may be that these people made some unfruitful choices in raising their child. But no matter how wrong-headed, I doubt that they hoped to raise their boy to be a mass murderer.