Well, he's not, technically, a sociopath.

"Yes. And then there was the manner." He glances at her, wary, and then gives his head a slight shake. "Picture a sealed file that needs to be torn open where it is for the data to be extracted. Picture the data to be. . . grown into the file, in a sense.

"For the metaphor to be complete, I'd need to have the file stored within my ribcage somehow. I haven't come up with a comparison that I find accurately conveys what happened. I don't return to it very often."