here is the interesting thing. I think originally there were two masked men. One with short hair and one with long hair. The one with long hair was the guy who was controlling the 4th mizukage and helped Itachi massacre the Uchiha. The one with short hair is the one who attacked Konoha with the kyuubi.
I personally don't think they are the same person because the attack on Konoha happened before the Uchiha massacre. In fact it was the reason the Uchiha massacre took place. where as the controlling of the Mizukage took place before the attack of Konoha.
AMAZING prediction my friend.

Is it possible these to ninjas are SOME how connection?