Yes, i wanted to say Guts :) My bad
Can you tell why you think it's not possible that the skullknight can't be the former owner of the beherit ?
And i really think that guts escape partially the causality. The god hand's member were suprised to see him survived and they are supposed to know...
Isn't it possible that the Skull knight is the former owner of the red Beherit ?
I've always imagined him supposed to be the 5th God Hand but then refuse this power, either because he didn't fall in the trap (like the illusion griffith had) of the other god hand's members or because he refused...