I have 3 demo recordings here and to me it seemed as if you were using walls and possibly another hack. The sporadic aim was default for me to tell what you were doing. I would like another admin to watch the recordings as well if I may be wrong. If I am wrong then the ban will be removed.
P.S. Keep in mind that his ping was about 100 so this may be a cause to why some of the shots may look weird.
pain2.dem
Tick 2900 - Aim a bit before the player comes into view
Tick 3300 - Headshot that was not near his head, then again you did have over 100 ping
Tick 5800 - Engineer had not come into the screen yet and you're already trying to shot early, can be seen as possible walls
pain3.dem
Tick 300 - Right at the beginning you had hit another headshot not near the person's head
Tick 1100 - Can be seen as a clean headshot coming up around tick 1400, hard to judge this one
pain4.dem
At the beginning you can see the sporadic aim that I'm talking about, no idea what's he doing
Tick 1200 - Headshot that was not near his head
Tick 1600 - Headshot that was not near his head
Tick 2100 - Headshot again
Tick 2300 - Headshot
Tick 2400 - And one last headshot not near the head
