You're so right Eq.
I just went through some old e-mails and re-read the one from his sis; she DOES mention something about the cortex being damaged, though not the prefrontal cortex as was mentioned in the article you posted.
I have been avoiding this moment like the plague. If he can't help it, then I'm stuck with this monster for LIFE!
I'm going to post the e-mail..... gimme a few.