I get it okey(at least im trying to stay sane). Isaac was sold, locked up, experimented on as a kid. Also wasnt fed blood for years so hes bloodthristy. Explains why hes so FUCKING SICK IN THE HEAD. That he got a split personality or watever. The story did say that the serial killings only started when isaac got out, which is not a coincidence(which WE ALL TOT WAS, omfg).
So, although the ending is SHIT. The storyline of isaac having a 'split personality' could have been used so good in the story. And HELLOO?! More screentime for the Mac, Kay, and Blueberry maybe???.
I hope why i have kids...someone make a complete AU of this. And i will die happy.
Im not stupid right? Ain is the Duke, right?