So I'm guessing the guy that got killed with a knife was actually murdered by his son, and END came by and claimed responsibility for it after chopping the corpse up.
I don't know if it's because I'm completely wasted or what, but this manga turned into an absolute train-wreck in the later chapters. I have no idea whats going on. It would've been better if this manga was just about an average person teaching an AI that it has a soul and humanity despite being...