I think Alex died to give birth to another monster. I think Clark really has psychopathic tendencies (the cat at the beginning, how he seems to be always indifferent, how he enjoys collecting 'tokens' like his blackmail documents) but the death of the doctor triggered him, I think Clark taunted Alex on purpose to get a glimpse of what it's like to be a serial killer, he was learning how to be one, I think Clark wants to be a serial killer, by manipulating Alex to kill the one thing that's keeping him human (meaning the doctor, Clark probably truly loves him), because he can't do it himself. That's just my two cents.
I think Alex died to give birth to another monster. I think Clark really has psychopathic tendencies (the cat at the beginning, how he seems to be always indifferent, how he enjoys collecting 'tokens' like his blackmail documents) but the death of the doctor triggered him, I think Clark taunted Alex on purpose to get a glimpse of what it's like to be a serial killer, he was learning how to be one, I think Clark wants to be a serial killer, by manipulating Alex to kill the one thing that's keeping him human (meaning the doctor, Clark probably truly loves him), because he can't do it himself. That's just my two cents.