He has no family of his own.
They were killed when he was very young by some thugs or at the very least that's what they seemed to be.
The only thing they left behind was a young boy, who's anger sent him on a plot for revenge.
To find the ones who took away his family and eradicate them.
The only problem is he doesn't know where to find them or really even who "them" is.
All he knows is he needs to get stronger, much much stronger if he wants to get revenge.
About 5 years later he is quite poor and gets money working as a bounty hunter for an organization called Zodiac who took him in shortly after the accident.
And no he has made no steps towards his goal,
So far.