JC--
I am no fan of the Soviet Union then, or Russia now.
But the word "rational" covers a lot of ground.
Trying to start a life in Russia might speak to an ideological bent, in an otherwise rational person.
That is, no one has ever said LHO was schizo, or fabricated memories, or misunderstood basic instructions, etc. Indeed LHO, as Marine, was advanced into relatively high-end radar work at the Atsugi airbase in Japan.
I doubt some whacko would be able to do that.
I do regard someone shooting at major public figures, or any innocent person, as likely mentally ill, even if lucid. I am a layman in these matters.
Tough call on LHO. The DPD'ers who interviewed him post-JFKA thought him lucid, perfidious and abrasive.
As for low-level DGI, G2 or Apha-66'ers, they might regard LHO as very useful.