I say it was the caterpillar
Damn, really. Well, what if we consider more humanoid options?
(ー_ーゞ I think he pins the dad against his "lady" and then gets rid of the dad
oh shit... that sounds pretty believable.
Maybe indirectly getting the lady by having dad kill her? I'm still trying to figure out his tactics huhu
So, let's place our bets. Who was our charming sociopath's first victim? His father or his not-yet-stepmother?