From the beginning of the demo you can see your aim getting pulled slightly towards a hitbox. It's only about 2px, but the aim correction is definitely there. It's most prominent when you pick up the M249 (the big machine gun, I can't remember if thats the proper name because I never use it) and rush through long A doors when there are CTs oncoming. The aim correction goes nuts and starts pulling towards each CT as they approach you.
EDIT : Apologies if I am out of line replying in this thread, but I thought I would try and clear up the reasoning behind why it's evident that an aimbot was in use. I hope that this has been an educational post, for the defendant and anyone else that views the demo and can't see why it's been flagged.
If you read this, you suck.