The body language of the old man suggest that CCS is a ward of some sort. The scandal should involve someone close to him but not himself directly. Given that the mother's identity is known, the link would involve a male member of the Lee clan. This male Lee would be close enough to the old man that he would take on the responsibility of grooming the child as if the child was his own.
My money is on Freddy. The following is an old photo. Who looks most like CCS?