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.
No
Really good!
Sharingan
He doesn't have one.
Suaskes (?) If you're talking about Naruto, Sasukes parents actually get killed by Itachi (Sasukes older brother)
July 23
Fugaku and Mikoto Uchiha
July 23rd - Pisces
yes itachi killed them
no that is not likely to happen
Jugo
ambot