Kleiman would have been using some of his 1 mio Bitcoins to get a better medical treatment. He seemed to prefer dying broke.
This is the best evidence
contra that I have seen too. From his friend's account (Paige), he gave up on VA treatment a little before his death, and may have been resigned to his fate, so to speak. One would expect him to have looked harder for better treatment options and been willing to break open the bitcoin piggybank at that point.
That's not conclusive, because we can think up all sorts of auxiliary hypotheses that would negate that line of argument. I've favored Nick Szabo as Satoshi for a long time, but I think Kleinman has at least an equal chance.
Evidence in favor:
-Right time zone
-Hospitalization and subsequent death matches Satoshi's retirement and disappearance.
-Said to have been involved in bitcoin by friends, by Craig Wright; his father asked about bitcoin upon Kleinman's death.
-Involved on MetzDowd email list where Satoshi was active during the formative period before bitcoin became reality.
-Computer "genius" and worked in the field - not clear that he had the precise skill set, but it certainly sounds possible.
-Very private individual, in real life and online.
