Itachi Uchiha, he's the person who killed the Uchiha clan....he's also the big brother of Sasuke Uchiha, and he's the member of the Akatsuki, even the member of the Anbu Black Ops...his girlfriend was Izumi Uchiha, and his best friend was Shisui Uchiha. Itachi: Sasuke, i know your there...how much can you see through your Sharingan...?