Itatchi to Sasuke

After sasuke kills itatchi because he wants to seek revenge on him for killing his whole clan the uchiha he finds out why he killed his clan. he was forced to he had no choice he went as far as to join the akatsuki as a spy and sasuke wants revenge on the hidden leaf for that but when the 4th great ninja war breaks out they summon itatchi back to life and he breaks the seal so he's like a living person again sasuke spots him when itatchi is trying to find the person summoning the all the reanimated people and they do they have to fight him but can't kill him. he put him under a genjutsu and made him undo the seal so everybody reanimated is free. but itatchi's final words are the truth.