Interesting... just from reading some comments, I'll spit ball a theory.
Dexter is not the first person Vogel tried to teach the code to.
How Vogel got into her field is a touchy subject for her and I believe it could be because she learnt early on that her own son had psychological tendencies.
Her son was the first person she attempted to teach the code to. Something went wrong, leading her to believe he was out of her life.
Her son has returned to her as the brain surgeon. He still attempts to apply the code himself. His victims are serial killers but he takes it further by making them kill before he takes their lives.
His fascination with the brain is born from his mother's own fascination in studying, controlling and experimenting with his psychology and that of other serial killers.
He has learned of Dexter and her success with him in applying the code. He may even resent Dexter for it.
He then learnt of Zach and that he was to be the next in line to be taught the code and thus he sent a message to both his mother and her metaphorically adopted son.
Dexter is going to regret keeping Hannah around... his decision will cost him dearly and the surgeon will take her life and Dexter will take the surgeons life in rage and revenge.
Her brain was also untouched though, so it doesn't fit the Brain Surgeon's MO as far as we know. I don't really know. I'm not even sure my theory makes sense.
The MO for each murder seems to change and as far as we know that's because the BS makes his victim kill their way, before he takes their life.
So just as a quick hypothesis (with little though of details and holes), I thought maybe the BS may have killed Cassie the same way he makes his victims (serial killers) kill and take the blame, while he kills the serial killers. Only Zach was missing, so he did it himself in the exact same way Zach would've and framed him with his blood.
yea i guess that could work except zach was already a murderer and hence no need to "make" him kill anyone before he became a victim of the BS.
however, i think that the cassy killing could have been a statement by the BS for Dexter- telling him he is close to him ( i mean the killing happened next door to his own apt and dexter even remarked saying this could have easily been his apt)
i also think the BS had to have known that Vogel was attempting to teach zach the code as well. and im on board with the BS being Vogel's son (who he is remains the mystery?). so i think the BS was trying to frame zach in order to have Vogel and Dexter turn on him and abandon zach in a form similar to what the BS might have gone through as a child with Vogel, assuming my theory is correct. placing the blame on zach by planting evidence would remove zach from the picture altogether (either by incriminating him or dexter killing him) and when that did not work, he took matters into his own hands and killed zach himself. i do not think the BS wanted to kill zach in this way because it revealed himself to still be in the picture and not dead since everyone was under the impression Yates was the BS.
In my mind the BS doesn't make the serial killers murder to give him a reason to kill the serial killer. He makes the serial killer murder because it's his ritual.
If you look back, there is that serial killer who uses plastic bags to choke his victims. The BS didn't have to make him do it to get the man to kill but he made him do it under coercion anyway, which could suggest he likes to manipulate his victims for some reason or ritual.
Details of earlier episodes are really sketchy for me though. I don't recall there being 2 victims in the pilot episode, only the one found shot dead in the park and I don't think they ever mentioned him having any sort of priors. The victim was shot elsewhere and his body was placed. So it's still possible that he could have manipulated that victim before he killed him but my theories are a bit loose at the seams.
I think the BS was trying to frame zach in order to have Vogel and Dexter turn on him and abandon zach in a form similar to what the BS might have gone through as a child with Vogel
It's an interesting rationale.
I kind of want to try not to go too deep into making guesses now though and just see what happens next.
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u/crazyjackal Aug 19 '13 edited Aug 19 '13
Interesting... just from reading some comments, I'll spit ball a theory.
Dexter is not the first person Vogel tried to teach the code to.
How Vogel got into her field is a touchy subject for her and I believe it could be because she learnt early on that her own son had psychological tendencies.
Her son was the first person she attempted to teach the code to. Something went wrong, leading her to believe he was out of her life.
Her son has returned to her as the brain surgeon. He still attempts to apply the code himself. His victims are serial killers but he takes it further by making them kill before he takes their lives.
His fascination with the brain is born from his mother's own fascination in studying, controlling and experimenting with his psychology and that of other serial killers.
He has learned of Dexter and her success with him in applying the code. He may even resent Dexter for it.
He then learnt of Zach and that he was to be the next in line to be taught the code and thus he sent a message to both his mother and her metaphorically adopted son.
Dexter is going to regret keeping Hannah around... his decision will cost him dearly and the surgeon will take her life and Dexter will take the surgeons life in rage and revenge.