I'm not seeing anything here besides shitty bhop and a good utilization of sound.

Regardless of this, there are some shady kills, but in this demo there is nothing active. I don't even see walls (I watched until 08:26).

However I will make note that this player does already have a VAC banned account.
Old account: http://steamcommunity.com/id/GuyontheRadio
^ TWO VAC bans ^

Now, his current account has been banned from multiple servers. Servers in which have anti-cheat enabled as a plugin that auto-detect hacks on the spot.
There is one case of this for NoFlash NoSmoke, here:
http://www.wt-f.com/bans/index.php?p...steamid&Submit

His other bans on his current account:
http://www.oldguys.clanservers.com/i...dvType=steamid (Aimbot)
http://www.awpwnage.com/forums/sourc...107817&Submit= (Multi-Hack)

He's also friends with Chris on steam.. so why don't we get Chris to lure him into admitting?
Other than that - there is nothing going on in the demo aside from a fail attempt of a bunnyhop.

I would also like to note that between his two accounts, there is roughly 300 hours in CS:S altogether. There is also not enough in CS:GO to understand the mechanics of the game, and while it doesn't take very long to understand if you try, you still do not get kills like the ones that are being completed in the demo. He does have however over 1.4k hours in TF2, which means he does understand a bit of it and how it will end up working. This demo just isn't enough and I'm not seeing aimbot in it.

EDIT: I'd like to add in everything he says and does he refers to hacks. Any game, any time, any where. Whether it be his clan tag, a review, a comment, or a picture. They all have the word hack/cheat in them.
EDIT2: He has used Steam Achievements Manager to unlock all CS:GO and TF2 achievements on his new account. (This will not get you VAC banned as it's not considered a cheat, however it's serving the purpose of understanding him)