Hal has always been my first candidate for who Satoshi is. there are a lot of details supporting this theory. for example, he's a cypherpunk and had contact on Crypto circles before Bitcoin. Hal had a neighbor called Dorian Nakamoto, but had Satoshi as first name. I think he "stoled" this name as alias. further Satoshi disappeared a little before Hal entered the last phase of it's degenerative illness and the first transaction from Satoshi went to Hal. I think Hal created the masking identity to decrypt himself and introduce Bitcoin from the safety of relative anonymity, simultaneously supporting Bitcoin as himself.
With those I have red too, I think he's the real Satoshi too, it's just so sad that he's now dead, but still we are lucky that he managed to do Bitcoin that will serve as his one of his greatest piece, hope one day he will recognize for this for what he did, well, there's still no assurance for now, but I am one of those who believes that he's the real one.