>>714147370
>Not use their autism superpowers of hyperfocusing on every minuscule detail
The Knight very clearly has reindeer antlers
The Knight's weapon very clearly takes the form of a baseball bat, as its presented out in their open hand for a three seconds to make sure you get a good look at it
On the basis of these two facts alone we can say that The Knight's identity is almost certainly December Holiday and 99% of other suspects can be eliminated. The only remotely plausible alternative worth any serious consideration is Carol.
You don't need to be a turbo autist to come to this conclusion, you just need to be aware of the basic background on Dess that's been established since Chapter 1 and to be paying attention.