because the konoha elders of the leaf village told him to. Go to narutopedia and youll see. itachi relly loved sasuke and would never harm him that's why he didnt kill him because he really loved sasuke. Sasuke and itachi fought if you go to manga you will see and itachi dies because of medical reasons and when Tobi tells him that(Tobi is the uchiha madara creater of the uchiha clan and the 9 tailed fox) sasuke get angry and swears revenge on the konoha qouting " As eagle we only have one goal.. cruch konoha"
Suaskes (?) If you're talking about Naruto, Sasukes parents actually get killed by Itachi (Sasukes older brother)
Itachi and great thought sasuke tries to kill him from episode 1
Fugaku and Mikoto Uchiha
yes itachi killed them
Very unlikely.
To kill Uchiha Itachi, his older and hotter bro
To kill his brother, and reserect his clan. According to him he is willing to do it even if he has to be consumed by hatred. I'm not sure what his goal is in the Shippuuden series. Cause Even after he kills itachi he finds out what really happened. And apparently desides to attack the leaf village.
is kakashi narutos stepbrother
sasukes brother itachi is in a group called the akatuski
his brother itachi pulled it out and just as he was about to lose his other eye he used his curse mark to wake up out of the genjutsu
No
When Itachi said to Sasuke to kill his closest friend, he meant that when a member of their clan does that, their sharingan develops in a special way, therefore giving them more power.