Aiku was Your father.

Your Mother Died when giving birth to you that made Your father(Oliver Aiku)'s personality changes alot Because Your Mother died. You asked to aiku when he comes out from the kitchen do he loves you or not then Aiku throws a knife at You but missed and the knife hits the wall behind you and Aiku's answer was..

"Damn, I missed.. I wish that you die." glares at You