Hello everyone, my opinion after viewing the 4 demos:
1.demo (tanda) - a really suspicious kill as he kills Travu through the fence without hearing/seeing him, so luck or wh. Otherwise nothing noticeable.
2.demo (tandaa) - nothing suspicious that can be traced back to wh or aim.
3.demo (tandaaa) - nothing suspicious that can be traced back to wh or aim.
4. demo (tandada) - nothing suspicious that can be traced back to wh or aim.
In summary and after watching the demos, I would say that he is a good player, has experience, plays a lot with sound and radar and has good aim control. The headshots he take at longer distances are partly due to his interp value, I assume. aim/no recoil/aim supporters look different to me.
In addition, he has a clean fungun history. What is strange here, however, is that he sometimes plays with Steam and then again without it. He doesn't have a Wargods history.
I think a ban based on the demos we've seen so far is wrong. If there are still doubts, you should check his PC to see whether there is software/tools that can bypass a fungun test.