Alright, so let's go for what ArcadioN said then, shall we?
ArcadioN said that coloN impressed him on LAN in a 1-on-1 tournament. That's pretty cool, it just shows that coloN probably has insane aim and mad reactions.
However, according to your logic, if ANYONE has very good aim/reaction/whatever, it gives them the license to cheat AS LONG as they impressed a pro player on a LAN event? You see what I'm trying to prove?
I'm not trying to prove coloN is hacking, I'm trying to prove that you can't label a player "clean" just because he impressed a bunch of pros in a 1-on-1 LAN event.
If you still don't agree with me, then you probably think that CS 1.6 is all about aim, which it isn't. It involves game-knowledge(game-sense) as well, something you don't need if you are using a wall-hack.