Quote Originally Posted by enkoujin View Post
Itachi could have used Shisui's Mangekyou, but chose not to do so against Sasuke because there were meanings he wanted to project on Sasuke so that he could naturally choose the path Itachi had wanted him to do without actually forcing him to do so (that is why the crow acts as a last resort). Naruto was able to use the crow involuntarily because a genjutsu was already placed on the eye to react to another's Mangekyou sight.
http://mangastream.com/read/naruto/65686308/13
Yes there were meanings he wanted to project, but he had some weird technical excuse as to why he couldn't as well.



Itachi was not a part of ROOT. The only reasonable explanation is that Danzou simply went grave-digging up Shisui's body and took his one eye that was left.
Itachi received the order to kill the Uchiha clan from Danzou. I suppose he could've acted on his own accord rather than as a ROOT agent, though. However, Danzou definitely got Shisui's eye before he died, as they clearly showed Shisui in this chapter with his right eye missing.