First off, I have posted but not banned this player previously for suspicious gameplay. It is odd to me that his gameplay changes a good bit at times when I have watched him play. We have had comments and discussion regarding this player in a post I made earlier this year.
As for these demos, the pipeline demo is most notable in my eyes for the fantastic hip fire accuracy using different guns. At times I use the SAW (when necessary) and I cannot seem to hit something that is right in front of me as I spray bullets far and wide of the target. He seems to hit targets with ease using different weapons without looking down the sight. The pipeline video does have a couple of suspicious kills for me but alone is not enough for a ban. The crossfire demo is a totally different story. This video does not show evidence of cheats in my opinion but instead shows moose getting totally wrecked by knucklehead and cro.
In total, I have my doubts about this player in general but not enough to ban on the demos presented above in my opinion.