The last time i checked up he was crying because of what his brother did to protect him from what the Uchihas were doing, then he and team hebi (snake) become team Taka (hawk) which means the team joins Akatsuki and said that their new mission was to destroy Konoha.
This was said in Naruto Shippuden in episode 141.
To destroy the Village Hidden in the Leaves for ordering his older brother Itachi to kill his entire clan. And making Sasuke hate Itachi up until the point that Itachi died, leaving lots of regret.
