Uchiha Itachi

Itachi the brother of Sasuke is murderer of his whole clan/ Family (the Uchiha clan). He is also part of the crime group Akasuki. He is supposedly stronger then Orochimaru, and is able to use his Sharingan to its fullest extent. He is also considered a genius, becoming a Chuunin at the age of 10 and by the age of 12 becoming the Konoha ANBU captain, today he is 20 years old. Currently he is considered a missing nin, and his whereabouts are unknown.