Board Thread:Naruto Gaiden/@comment-25380140-20150514070725/@comment-28861328-20150516184912

Ravenlot 27 wrote: I have a lot of doubts about Shisui's theory. Yes, there's no one amongst the Uchihas aside from him, who can pass for akatsuki cloak-man more or less, but in that case what we see are too many collisions in his real motives. Shisui didn't really care for "Uchihas' fame", although he posed as such type of person, but we all know, that his primary task was the safety of the village. If that's actually Shisui and he is aware of the truth about Itachi, then he can't hold any grudge towards Sasuke - the latter helped to stop the war, he's following Itachi's will and protects Konoha. I should also mention, that if the person, who taught Itachi these self-sacrifice ideals, doesn't understand his sacrifice, it doesn't make any sense. And, by the way, Sasuke didn't really kill Itachi, the former died from his mysterious disease and MS overusing. If Shisui doesn't know all this, it's an another question, but I highly doubt, that "Shisui of the Body Flicker" with all his genjutsu mastery couldn't gather information while staying in shawows, after all, even Obito managed to to this.

The only people alive that know the truth about Itachi's sacrifice are Sasuke, Naruto, Kabuto, Kakashi, Yamato, and Sakura. Kakashi, Itachi (reincarnated), and Naruto all agreed that it should be kept a secret from the world and so it has been. Shisui wouldn't know anything about that.

Also, like I said, you literally can't say "Oh, he wouldn't do that! He's such a peaceful guy!" when it comes to the Uchiha. Madara was good-natured as a child, Obito was good-natured as a boy, and those two did a good job of fucking just about everything up. For Madara, he lost his brother and went ape. Obito lost his childhood crush and lost his ever loving mind in the process. Hell, even Sasuke was an innocent little boy, then suddenly Itachi murders his clan and Sasuke becomes "the Avenger" and slowly devolved into a deranged psychopath. The Uchiha literally only need a slight push to go bat shit crazy and after that you cannot reason with them unless, apparently, you're Naruto. To Shisui, Itachi was a brother. Sasuke killed him. By Kishimoto's standards, that's enough to make Shisui into a raving, psychopathic murderer. He's done the same thing with three Uchiha before him, why would Shisui suddenly be an exception?