yes his background is very in depht, if you use him you start noticing he begins to open up more to the group. he also begins to come to peace with himself throughout the story you just have to pay attention. actualy if you fight hojo with him he says (SPOILER)I was wrong Hojo... the one who should have slept... was you" if you think about whot Vincint thinks about himself that is a very powerful line. He was very alone and very tortured and never forgave himself even after Lutricia forgave him.