Thanks, I'll check these and report back in a bit

EDIT : I haven't had a chance to check these demos properly, but from first glance it seems like there is something not right. Give me a minute and I'll have a proper look.

EDIT 2 : With sv_drawimpacts 1, it looks like some kind of anti recoil hack. The demo is kinda short and inconclusive though. He only gets a couple of kills, and although the kills seem weird, I probably wouldn't ban with such a short demo.

If he's a regular of Office 24/7 then I can come in and check more. Unless you can find another admin who would ban over short demos like that. But you're right, it's definitely suspicious. Especially the window kill, as his aim doesn't move but the bullets start going up (not due to recoil).