holy shit I just realized the Dad's name is Aihara. but anyways...wtf is up with his physique! like danbellucci said, he looks like a pro wrestler or something. Besides the hair shave he truly has transformed into the beast he wanted to be.
Damn even with nothing to lose, why would he admit his crimes to his doctor? Also I wonder if Rika's still alive. If however in the end Aihara dies or gets convicted, I hope either the doctor or Natsumi would help Rika live a normal life again.
Being burnt alive would be most painful. and its what Rika suffered a bit too. Unless Aihara finds a way to do the Rat Cage torture thing.