Those histrionics at the hospital don't even seem like JV is fearful that he is about to be caught out, imo. They are so obviously fake but I think they both thought that they had been so clever, they just had to act the part of grieving parents, and then walk away, having outwitted everyone.
As for this creature today, the repeated 'my son' and 'my child' is grating, in the extreme, considering what was done to that poor defenceless baby, and the terrible death he suffered.
My heart is broken for him, and the fear and the pain that he went through is unimaginable. I hope they both get the longest sentences possible, and never see freedom again.