The first demo has a few spots I deem conclusive however before I make my final decision I am going to review it again to ensure what I saw wasn't an engine error or something similar. This is a great example of someone who knows how to hide it well as if the player knew he may be under scrutiny.
I will have the opportunity to review both again on my lunch break today. My vote will be cast then.
edit: reviewed both again. hacks. willing to explain in private, not posting detailed description to avoid swaying others into a vote.