I remake him and I know I'm still not introducing him (I guess)

I drew a lot of sketched of him (some reference)

His still have no name so you guys can suggest some names while I still have no name for him

Some Info about him:
His an Assassin,  choosen to be owner of the cat,  his cat isn't just normal cat,  he already killed alot of People without getting Caught,  Lonely and sad Boi.