To be honest I can't tell if this demo is evidence enough, but I have a strong feeling he is using some kind of wallhack and definitely a Spread-control.
He knows where the enemy player is at all time even though you can hear that he can't have the information from sound. Seems suspicious to me.
I can be wrong, tell for yourself.
He is known to be toxic in chat for no reason.
1. Player nickname: KoCou_C_KoCou_!!!2. Their SteamID: VALVE_6:1:8556718943. Link to player in stats page: https://stats.hl2go.com/hlstats.php?mode=playerinfo&player=546234. What did they do: I assume he is using Spread-control and Wallhack. Also being toxic in chat. 5. When did it happen? About 20 minutes ago. 6. Demo: Spectate start around 17:15 : https://www51.zippyshare.com/v/N1oCkcF9/file.html7. Server it happened in: HL2GO.COM - War3FT CSDM