Well to be frank with you Chen, this dude really doesn't have one hell of a back story. Well I figured he's been experimented on right and he really didn't quite like that very much cuz it shattered the person who he once was and he can't go back to his proper self aaaaaaaaaaaaand that wasn't what he signed up for... well the rest it just a killing spree orgy... As if thats gonna change anything...lol