Itachi at 13 years old submitted to a life sentence because of his duty as a shinobi. His dreams of creating a better world and for world peace by becoming a Homage was literally thrown out of the window. His remaining hope for he future was for his younger brother was to avenge their clan and freeing Itachi from his hell.
Sasuke on the other hand, never investigated or found out the real reason why Itachi did what he did. Obito has to spoon-fed it to him, and then he went to go against his elder brother's wishes and lashed out, once again, and killed the man (the complete ahole elder, Danzo). I
tachi could have killed Danzo if he wanted to, but he did not. That was how truly honourable this shinobi was compared to Sasuke.
So the answer to your question: ITACHI.
Sasuke may have killed Itachi, but just like Uchia Madara said that Itachi could kill him if he wanted to the only reason he let him win is to protect Sasuke from his curse mark because when they fought Itachi used his susano"o to suck the curse mark and Orochimaru out of his body. now Sasuke is going to destroy the Hidden leaf Village and kill Lady Tsunade
actually, sasuke didn't kill itachi. when they fought itachi was hurt or sick, and he died. he never intended on killing sasuke. sasuke didn't know about itachi's past
yes his brother's name is Uchiha Sasuke and Sasuke's brother's name is Uchiha Itachi == ==
Actually Madara did give sasuke itachi's eyes. In the latest manga madara transplants itachi's eyes to sasuke's.
yes i did not want to give spoilers but sasuke fights itachi and takes sasukes left eye and sasuke takes itachis right eye they keep fighting so finally sasuke kills itachi and does the head poke thing before he dies
Itachi resurrected?... Yes Sasuke Killed?... No
itachi is probaly better than sasuke but in manga sasuke and itachi have a final face off and itachi loses and dies but he was already injured and ill ----- mistuhalli
Itachi, that's if you're referring to how Sasuke achieved the Mangekyou Sharingan. When Madara reveals that Itachi was doing things for the better of Sasuke's life, Sasuke realizes that Itachi was the closest person to him which activates the Mangekyou Sharingan.
actually, sasuke didn't kill itachi. when they fought itachi was hurt or sick, and he died. he never intended on killing sasuke. sasuke didn't know about itachi's past
Itachi let Sasuke kill him or he could have killed sasuke
yes his brother's name is Uchiha Sasuke and Sasuke's brother's name is Uchiha Itachi == ==
There is no "they"...only Sasuke kills Itachi. And, no, Sasuke is not friends with Naruto.
Because sasuke kept bugging Itachi to train him and tell him that he promise him that he will and Itachi said "not now maybe later sasuke"
Actually Madara did give sasuke itachi's eyes. In the latest manga madara transplants itachi's eyes to sasuke's.
although Sasuke defeats Itachi. Itachi is believed the better ninja of the too. itachi was sick and partial blind according to manga chapter 368 because he was loosing his light in his sharingan. when they fought after sasuke uses his final move itachi merely gets back up. his intentions were never to kill sasuke but to remove orchimaru curse mark seal and to give him the Amaterasu. itachi is believed the prodigy ninja equivalent to the 4th hokage. everything he did was perfect he could have easily killed sasuke in their battle but because of the love for his brother he could not do it.
yes [warning spoiler sasuke kills itachi in shippuden]
Yes, Sasuke is Itachi's younger brother.
Itachi is Sasuke's brother.