Hurray! Sasuke! I know very little about Naruto other than the fact that I always make an attempt to watch it and get nowhere. Then try to read it...and get a few chapters down.
I DO know about screwed up families.
Sasuke...meet Zero.
Zero is an identical twin who was cursed to eat his brother before birth but didn't.
So instead twelve years later his brother murdered their family and had him turned into a vampire...just to make him hate him so he would eat him later.
Yay for stupid brothers...
The only difference is Zero is the older of the two.