Jada is a hitman for hire - he looks like a mean mutherf***** (pardon my french but no other words best describes him). He has no iris and is pupil-less (no, it doesn't mean he has no students) with glow-in-the-dark eyes. Don't know if the inspiration for this is drawn from Storm of the X-Men coz when she summons her powers, her eyes turn completely white.
He has a ponytail so that he can be such an a$$ - ha! ha!