I'm really not sure, it's very hard to tell because he experienced quite some packet loss and was playing with a 200ms ping, but I'm pretty sure I saw several snaps in the demo, so I banned him. No wallhack, simply aimbot, pretty sure triggered through a button. Especially between 5:15 and 5:10 it is rather obvious and there are quite a couple of these moments. Well, maybe you can recheck it.
I just noticed he wrote some messages on IRC, stating he did not cheat. The snapping may have been through packet loss, but it happens too frequently on players, which kinda bugs me.
Edit: With the demo being too laggy to decide anything, we decided to revoke the ban. I apologize for the inconvenience.