I don't know, sorry! I've heard it come up so many times in discussions, though... I think they mostly cited Cross's disguise (he pretended to be a Skull) and the similar magic... and weren't the Skulls picking out the more intelligent scientists to convert? I thought the arguments were kinda sketchy, probably because I never saw them together as one organized post, but it was an interesting point and could explain why he may not have died but is still incompatible - and what's up with the mask.Ah lol. Can you please link me to original theory? I wanna read their arguments. Althouth i kinda can think of some myself ;P Skull is kinda dead already so it needs special weapon to be used against him to die, so no wonder.