Having personal experience with dementia - both grandmothers had it - I agree with you 100%. Whoever wrote this ep has never experienced anything like dementia. Not every dementia patient acts the same, but forgetting what day it is is the first step of the disease. The labeling of everything was right, but the UnSub was still clearly capable of working a television and knowing what time it was and what tools he used for killing and what kind of victims he preferred. He really wasn't nearly that advanced, which was what I was expecting, and more importantly, something that I would have had an easier time garnering sympathy for.

Because there was a lot of talk around the internets about how he was more of a Sympathetic Villain type. How "degenerated" his mind was, and how he "didn't know what he was doing", and um, no. He was still functioning, and even if he weren't, that doesn't give him a pass on being a sadistic killer with a whole SLEW of women issues (eurgh, making the girls say they "enjoyed it", NOT. ON.).